2ml clear hplc autosampler screw vials

No 2ml 9mm HPLC Vial is placed in inventory without passing cleanliness and performance testing for consistency resulting in a certified, 100% defect-free vial you can trust.
Vial Dimension: 12x32mm
Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)

Polypropylene is chemically resistant and the material of choice for pH sensitive samples, sodium or heavy metal analyses.
The PP vials are ideal when working with pH sensitive samples, aqueous samples in pharmaceutical applications, or undertaking sodium analysis.

Item No: Aijiren hplc filter vials for sale
Vial Size: 12 x 32 mm
Pore Size: 0.22um and 0.45um
Capacity:
Unfiltered sample chamber: 500 µL
Filtered sample chamber: 330 µL
Maximum operating temperature: 122°F (50°C)

Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml
Vial Material: Borosilicate Glass/Glass Type 1
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)
Usage: Laboratory Analysis
Logo: Customized Accepted

China High Quality 9mm Short Thread Caps with Septa for 10-425 thread vial Manufacturer

Aijiren 2ml amber HPLC vials with blue caps are constructed from Type 1 borosilicate glass, with low metal content, to protect your sample from destabilizing or leaching.
Product Name: 2ml Amber HPLC Vials with Blue Caps
Place of Origin: Zhejiang, China
Packing: 100pcs/pack
Color: Amber or Clear
Size: 12*32mm

The 1.5mL 9mm Short Thread Vial ND9,with its 9mm short thread design and capacity of 1.5-2.0mL, this vial makes for easy handling and integration into autosamplers. Ideal for applications requiring limited quantities. The vial comes equipped with various finishes and closure options, such as screw caps and snap caps, so researchers can select their ideal choice according to their unique research needs.

9mm screw high recovery sample vial is made of borosilicate class, so it has good Liner coefficient. In chromatography analysis field, 9mm high recovery screw vials is widely used in Life science and technology, Environmental Protection, Food safety. 
1.5ml glass high Recovery Vials Reduce Residual Product Waste by 99%Aijiren offer innovative high-recovery vials for comprehensive collection, automated handling and storage, with the subsequent maximum retrieval of high value samples.

9mm threaded vials are designed for use with Agilent and other rotary or robotic arm samplers. Sample vials are made of high-quality borosilicate glass or first-grade hydrolyzed glass. The cap is made of high-quality polypropylene. Our septa use only the highest quality materials to ensure proper function and can be pre-cut for easier needle insertion. Available in amber and clear colors, amber glass vials are ideal for storing light-sensitive samples. Clear glass vials are ideal for testing the solubility or dispersion of materials, allowing you to view the solution unobstructed.

OEM: Available
Sample: Provided Freely
Packing: 100pcs/pk
Material: Borosilicate Glass
Vial Height(mm): 32±0.3
Mouth Diameter(mm):6.15±0.15
Quantity: 100 vials & 100 caps

Suitable for 9mm Short Thread Vials. Caps is made of polypropylene. Septa is made of PTFE / Silicone. Color can be customized. 6mm Centre Hole or Closed Top can be selected.

Vial Dimension: 12x32mm
Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml
Vial Material: Borosilicate Glass/Glass Type 1
Application: Lab consumables for analysis
Certification: ISO9001, SGS, COA

9mm screw thread caps and vials are suitable for Agilent, AB Sciex, Brukers, Techcomp, PerkinElmer, ThermoScientifics, Shimadzu, Waters, CTC autosampler and other rotating or robotic arm samplers and autosamplers.

9mm Screw conical micro-vial for laboratory chromatography experiment, the micro-vial size is 11.6x32mm.
High quality glass vial for HPLC/GC analysis. 0.3 ml clear glass micro insert fixed in 2ml glass vial. Conical base insert vial can saving samples while during injection. wide opening top for better needle injection. 2ml clear glass vial with 0.3ml intergrated vial, designed for valuable samples to save for testing use volum. Bottom fixed micro insert to keep the vial central vertical

Materials of construction: pp chamber, PP plunger outer housing, borosilicate glass plunger inner storage vial, silicone septa with PTFE liner, PP cap
Unfiltered sample chamber: 500 µL
Filtered sample chamber: 330 µL
Maximum operating temperature: 122°F (50°C)
Minimum filtering sample volume: 220 µL placed into the chamber to obtain a 50 µL filtered sample

Caps for screw thread vials are available with either an open hole for autosampler use and standard addition or with a solid top for sample storage. Teflon and silicone rubber or ultra-pure silicone are used as raw materials to ensure that the septa are non-toxic; to ensure excellent functions, it is particularly suitable for gas chromatography, and to ensure that the septum does not fall into the sample vial during the injection process.
The adhesive-free bonding process is used to combine the polytetrafluoroethylene membrane and the silicon rubber or silicone bond together to maintain the excellent characteristics of the two materials. The polytetrafluoroethylene layer of the composite septum is in contact with the reagent. It is chemically inert and resistant to acid, alkali, temperature, and adhesion. It does not work with concentrated acid, concentrated alkali, or strong oxidants even at high temperatures. At the same time, the elasticity of silicone rubber or silicone layer can ensure sealing performance.

2ml autosampler vials 9mm for HPLC system with bonded septa caps. Including: 100pcs Clear/amber bottles 32×11.6mm made of borosilicate glass, 2ml lab vials 9-425 screw thread, Flat base Sample Vials; Made out of USP TYPE I Glass. With writing patch for pencil mark.

Main applications for Plastic vials are atomic absorption, water and protein analysis, capillary electrophoresis, ion chromatography etc.
Optimal choice when working with proteins. Ideal for IC applications

Aijiren 9mm vials may be used with robotic autosamplers in place of crimp style vials. 9mm Vials have a 40% larger opening for easier sample preparation, Aijiren 9mm vials must be used with 9mm screw pp closures to ensure proper fit and functionality.

9mm screw thread caps and vials are suitable for Agilent, AB Sciex, Brukers, Techcomp, PerkinElmer, ThermoScientifics, Shimadzu, Waters, CTC autosampler and other rotating or robotic arm samplers and autosamplers.

Here we describe a case where the type of Hplc Vials And Caps used results in an interesting phosphorous pseudorotation driven by the mild alkalinity of glass.
Vial Thread: Screw
Cap: Plastic open/solid cap
Septa: Non-slit, Pre-Slit, PTFE/Silicone
Vial Dimension: 12x32mm
Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml

9mm threaded vials are designed for use with Agilent and other rotary or robotic arm samplers. Sample vials are made of high-quality borosilicate glass or first-grade hydrolyzed glass. The cap is made of high-quality polypropylene. Our septa use only the highest quality materials to ensure proper function and can be pre-cut for easier needle insertion. Available in amber and clear colors, amber glass vials are ideal for storing light-sensitive samples. Clear glass vials are ideal for testing the solubility or dispersion of materials, allowing you to view the solution unobstructed.

Vial Dimension: 12x32mm
Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml
Vial Material: Borosilicate Glass/Glass Type 1
Application: Lab consumables for analysis
Certification: ISO9001, SGS, COA

Micro Insert is used to ensure the most accurate and reliable analysis of your lab samples. Micro-inserts are manufactured of clear glass. Micro inserts, when used in conjunction with autosampler vials, allow for maximum sample recovery and easier sample removal because the conical shape decreases the surface area inside the vial.
Micro inserts can be used with screw tops, crimp tops, or snap-top vials. All conical styles of inserts are offered with the traditional pulled point as well as the improved mandrel point. Pulled point inserts are more economical, but mandrel point inserts provide a more pointed and uniform tip that enables better sample recovery. Micro-inserts can be used on all 1.5ml vials. Effectively relieves the pressure of the syringe. PolySpring inserts are self-aligning.

Aijiren polypropylene screw micro vials can be used in most standard gas and liquid chromatography autosamplers. The PP micro vial is constructed from high-quality polypropylene, a chemically inert and durable plastic material known for its excellent chemical resistance. This material ensures that the vial does not react with or contaminate the sample. The vial features a threaded screw neck, which allows for a secure and airtight seal when the cap is screwed onto the vial. This feature is crucial to prevent sample evaporation and contamination. Aijiren PP vials combine the robustness of TPX PMP with the benefits of glass or PP micro inserts.

All materials are produced at 100,000 grade clean room. Passed ISO9001:2015 quality management system certification, RoHS compliance can also be provided.

As such there may be multiple types of vials being used simultaneously in a single laboratory without much consideration as to which is best suited for analytical method development and validation.
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)
Usage: Laboratory Analysis
Logo: Customized Accepted
OEM: Available

Vial Thread: Screw
Cap: Plastic open/solid cap
Septa: Non-slit, Pre-Slit, PTFE/Silicone
Characteristic: Consistency at quantification levels
Highly reproducible for samples >120µL
Long-term sample stability for most analytes
High solvent compatibility for mainstream HPLC and GC applications
Compatible with standard HPLC and GC autosamplers

Vial Dimension: 12x32mm
Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml
Vial Material: Borosilicate Glass/Glass Type 1
Application: Lab consumables for analysis
Certification: ISO9001, SGS, COA
Vial Thread: Screw

China High Quality 9mm Short Thread Caps with Septa for 10-425 thread vial Manufacturer

2ml amber autosampler vial, 12mm Diameter, 32mm Height, 9-425 screw top. Our vials with caps are widely used in standard HPLC and GC applications. The vials can be used on all common autosamplers due to their technical geometry, preferentially they are found on Agilent, HTA, Shimadzu, Thermo, Varian, Waters, etc.

Item No: Aijiren hplc filter vials for sale
Vial Size: 12 x 32 mm
Pore Size: 0.22um and 0.45um
Capacity:
Unfiltered sample chamber: 500 µL
Filtered sample chamber: 330 µL
Maximum operating temperature: 122°F (50°C)

Aijiren offers proven 2 mL Clear Screw Top Vials and consumables for the chromatographer. Meeting the requirements of customers’ demands.
Vial Thread: Screw
Cap: Plastic open/solid cap
Septa: Non-slit, Pre-Slit, PTFE/Silicone
Characteristic: Consistency at quantification levels
Highly reproducible for samples >120µL
Long-term sample stability for most analytes
High solvent compatibility for mainstream HPLC and GC applications
Compatible with standard HPLC and GC autosamplers

Materials of construction: pp chamber, PP plunger outer housing, borosilicate glass plunger inner storage vial, silicone septa with PTFE liner, PP cap
Vial Size: 12 x 32 mm
Pore Size: 0.22um and 0.45um
Capacity:
Unfiltered sample chamber: 500 µL
Filtered sample chamber: 330 µL
Maximum operating temperature: 122°F (50°C)
Minimum filtering sample volume: 220 µL placed into the chamber to obtain a 50 µL filtered sample

Item: Micro Insert for 9mm Autosampler Vial
Volume: 0.15-0.3ml
Color: Transparent
OEM: Available
Sample: Free
Certification: ISO9001:2015
Packing: 100pcs/pk
Brand Name: Aijiren
Place of Origin: China (Mainland)
Compatibility: 9mm HPLC Vials

Aijiren 300ul micro-volume inserts, clear glass, flat bottom. better to use combined with 2ml HPLC vials for HPLC.  Flat base Sample Vials.
Made from advanced technology and excellent raw materials. Precise bottle neck size, ensure autosampler handle is correct. Fully compatible with various brands of automatic samplers. Strict quality control to ensure size consistency from batch to batch. Clear Glass Micro Insert is used to ensure the most accurate and reliable analysis of your lab samples. Micro inserts, when used in conjunction with autosampler vials, allow for maximum sample recovery and easier sample removal.

The dimensions for 12x32mm vials are standard between manufacturers but the length of the neck and width/shape of the vial shoulder may vary. 12x32mm microvials have the same outer dimensions but the inside of the vial may be tapered to reduce volume or contain a fused insert. 12x32mm high recovery vials will have an internal conical bottom.

Materials of construction: pp chamber, PP plunger outer housing, borosilicate glass plunger inner storage vial, silicone septa with PTFE liner, PP cap
Unfiltered sample chamber: 500 µL
Filtered sample chamber: 330 µL
Maximum operating temperature: 122°F (50°C)
Minimum filtering sample volume: 220 µL placed into the chamber to obtain a 50 µL filtered sample

Aijiren offers proven autosampler vials and consumables for the chromatographer. The standard opening 2ml clear hplc vials have more threads per inch, so there is less likelihood that volatile solvents will evaporate over time.
Size:12*32mm
Classification: Laboratory Bottle
Application: For Autosampler
Material: Borosilicate Glass
Place of Origin: Zhejiang, China

Cap: Plastic open/solid cap
Septa: Non-slit, Pre-Slit, PTFE/Silicone
Characteristic: Consistency at quantification levels
Highly reproducible for samples >120µL
Long-term sample stability for most analytes
High solvent compatibility for mainstream HPLC and GC applications
Compatible with standard HPLC and GC autosamplers
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)

9mm Screw conical micro-vial for laboratory chromatography experiment, the micro-vial size is 11.6x32mm. High-quality glass vial for HPLC/GC analysis. 0.3 ml clear glass micro insert fixed in 2ml glass vials. 2ml clear glass vial with 0.3ml integrated vial, designed for valuable samples to save for testing use volume. Bottom fixed micro insert to keep the vial central vertical. Vials with integrated Micro-Insert are also available now in clear and amber glass. amber glass makes it compatible with sun-proof samples. Their glass Micro-Insert is absolutely centered in the plastic mold and pressed firmly against the septa due to its slightly exceeding edges. Standard vials for GC und HPLC.

Vial Material: First grade hydrolyzed glass, Borosilicate glass

The 1.5mL 9mm Short Thread Vial ND9,with its 9mm short thread design and capacity of 1.5-2.0mL, this vial makes for easy handling and integration into autosamplers. Ideal for applications requiring limited quantities. The vial comes equipped with various finishes and closure options, such as screw caps and snap caps, so researchers can select their ideal choice according to their unique research needs.

Cap: Plastic open/solid cap
Septa: Non-slit, Pre-Slit, PTFE/Silicone
Packing: 100pcs/pk
For Use With (Application): GC, HPLC
Usage: Laboratory Analysis
Logo: Customized Accepted

9mm screw thread vials are designed especially for use with Agilent’s and other rotating or robotic arm samplers 2ml, 12X32mm vials are manufactured of borosilicate glass and include a write-in patch for sample identification.

9mm Screw conical micro-vial for laboratory chromatography experiment, the micro-vial size is 11.6x32mm.
High quality glass vial for HPLC/GC analysis. 0.3 ml clear glass micro insert fixed in 2ml glass vial. Conical base insert vial can saving samples while during injection. wide opening top for better needle injection. 2ml clear glass vial with 0.3ml intergrated vial, designed for valuable samples to save for testing use volum. Bottom fixed micro insert to keep the vial central vertical

Aijiren autosampler vials are suitable for HPLC, LC/MS, GC, and GC/MS instruments and applications.

Vial Volume: 1.5-2.0ml
Vial Material: Borosilicate Glass/Glass Type 1
Application: Lab consumables for analysis
Certification: ISO9001, SGS, COA
Vial Thread: Screw
Cap: Plastic open/solid cap
Septa: Non-slit, Pre-Slit, PTFE/Silicone

Usage: Laboratory Analysis
Logo: Customized Accepted
OEM: Available
Sample: Provided Freely
Packing: 100pcs/pk
Material: Borosilicate Glass

Autosampler needle pierces through the cap during injection and withdraws the required aliquots of sample from the 2ml HPLC and GC Autosampler Vials.
Original Place: Zhejiang, China
Brand: Aijiren
Size: 11.6*32mm（with Write-on Spot）
Volume: 2ml Vial Diameter(mm):11.6±0.25
Performance: Acid Resistance, Alkali Resistance, Temperature Resistance

9mm Screw conical micro-vial for laboratory chromatography experiment, the micro-vial size is 11.6x32mm.
High quality glass vial for HPLC/GC analysis. 0.3 ml clear glass micro insert fixed in 2ml glass vial. Conical base insert vial can saving samples while during injection. wide opening top for better needle injection. 2ml clear glass vial with 0.3ml intergrated vial, designed for valuable samples to save for testing use volum. Bottom fixed micro insert to keep the vial central vertical

Suitable for 9mm Short Thread Vials. Caps is made of polypropylene. Septa is made of PTFE / Silicone. Color can be customized. 6mm Centre Hole or Closed Top can be selected.

9mm Short Thread Vial with integrated 0.3ml Micro-Insert, 32 x 11.6mm, Amber or clear glass, 1st hydrolytic class, label and filling lines, 100/pk
Aijiren 9mm glass vial with fused insert together eliminates movement of the insert. The fused insert also eliminates concerns about contaminants around the fused seam/space between the neck of the vial and the insert. Vials without graduation, all micro inserts are clear glass. Vials with integrated Micro-Insert are also available now in clear and amber glass. amber glass makes it compatible with sun-proof samples.

9mm Chromatography and HPLC Autosampler Vials and closures listed in this section are designed, engineered, and manufactured for optimum performance with HPLC and LC/MS applications.
Size: 11.6*32mm（with Write-on Spot）
Volume: 2ml Vial Diameter(mm):11.6±0.25
Vial Height(mm): 32±0.3
Mouth Diameter(mm):6.15±0.15
Quantity: 100 vials & 100 caps
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)

Aijiren offers innovative high-recovery vials for comprehensive collection, automated handling, and storage, with the subsequent maximum retrieval of high-value samples.

Aijiren offers innovative high-recovery vials for comprehensive collection, automated handling, and storage, with the subsequent maximum retrieval of high-value samples. High Recovery Vials Reduce Residual Product Waste by 99%.

Short Thread Bonded Caps for screw thread vials are available with either an open hole for autosampler use and standard addition or with a solid top for sample storage. Teflon and silicone rubber or ultra-pure silicone are used as raw materials to ensure that the septa are non-toxic; Adhesive-free bonding process, without the introduction of adhesive, the septum retains the excellent resilience performance of silicone rubber or silicone, softer than the septum of the adhesive process, which can provide better needles for the autosampler. protection of. Strict production management ensures product quality. The Bonded Caps with Septa are clean and ready to use without cleaning.

The short thread ND9 Vials are primarily utilized to inject samples from an autosampler. They are sold in several sizes, although 2 mL vials are more generally used.
Vial Material: Borosilicate Glass/Glass Type 1
Application: Lab consumables for analysis
Certification: ISO9001, SGS, COA
OEM: Available
Sample: Provided Freely
Packing: 100pcs/pk

Aijiren is the leading supplier of chromatography consumables, can offer hplc vials,hplc syringe filter, EPA VOA vials, and some other test tubes.
Any requirement for chromatography consumables, please contact us.

There are glass vials and plastic vials to choose from, and different materials can be selected for different scenes.

Polypropylene is chemically resistant and the material of choice for pH sensitive samples, sodium or heavy metal analyses.
The PP vials are ideal when working with pH sensitive samples, aqueous samples in pharmaceutical applications, or undertaking sodium analysis.
If you’re analyzing anything that might adsorb into borosilicate glass, or looking to avoid sodium adducts pulled out of glass, these vials seem to do the trick. Using them on triple quad mass spec quite successfully.

Aijiren 9mm 2ml Short Tread HPLC Autosampler Vial is designed for high-performance liquid chromatography, featuring a compact 9mm neck diameter for efficient autosampler compatibility and a shorter thread design for quick, reliable sealing. Crafted from premium borosilicate glass, these vials ensure chemical resistance and clarity, making them an ideal choice for precise sample analysis in the lab.

Size: 11.6*32mm（with Write-on Spot）
Volume: 2ml Vial Diameter(mm):11.6±0.25
Vial Height(mm): 32±0.3
Mouth Diameter(mm):6.15±0.15
Quantity: 100 vials & 100 caps

2ml clear or amber autosampler vial,12mm Diameter,32mm Height,9-425 screw top.Our vials with caps are widely used in standard HPLC and GC applications.The vials can be used on all common autosamplers due to their technical geometry, preferentially they are found on Agilent, HTA, Shimadzu, Thermo, Varian, Waters, etc.

The slit allows ambient gas to equalize the gas in the vial so that a vacuum is not created in the vial from the tight seal around the needle.
If coring or clogging from a narrow needle or needle deflection from highly durable septa material is a concern, then choosing a pre-slit septum is a better choice.
A PTFE/Silicone with a slitted septum allows for easier needle penetration as well as to release of the vacuum that forms when a large volume of sample is withdrawn from a vial.

Minimum filtering sample volume: 220 µL placed into the chamber to obtain a 50 µL filtered sample
Pore Size: 0.22um and 0.45um
Capacity:
Unfiltered sample chamber: 500 µL
Filtered sample chamber: 330 µL

Brand: Aijiren
Size: 11.6*32mm（with Write-on Spot）
Volume: 2ml Vial Diameter(mm):11.6±0.25
Vial Height(mm): 32±0.3
Mouth Diameter(mm):6.15±0.15
Quantity: 100 vials & 100 caps

Original Place: Zhejiang, China
Brand: Aijiren
Size: 11.6*32mm（with Write-on Spot）
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)
Usage: Laboratory Analysis
Logo: Customized Accepted

Autosampler vials for HPLC are generally grouped depending on the diameter of the vial, the height of the vial, and, the thread finish. Both clear glass and amber glass are highly inert.
Sample: Provided Freely
Packing: 100pcs/pk
Material: Borosilicate Glass
Vial Height(mm): 32±0.3
Mouth Diameter(mm):6.15±0.15

15x45mm 4mL vials are widely used in compound storage as well as for chromatography sample vials.
4mL vials are compatible with 3-425 screw thread closures.
PTFE/Silicone septa are most popular for HPLC application, and Pre-slit septa are easier to pierce with needles.
Pre-assembled caps and septa are convenient and minimize contamination from handling.

No 2ml 9mm HPLC Vial is placed in inventory without passing cleanliness and performance testing for consistency resulting in a certified, 100% defect-free vial you can trust.
Vial Dimension: 12x32mm
Vial Color: Amber and Clear
Vial Volume: 1.5-2.0ml
Customization:
Customized logo(Min. Order: 300 Packs)
Customized packaging(Min. Order: 400 Packs)

9mm 2ml Wide Opening Screw Vials. 9mm screw thread caps, septa, and vials are designed especially for use with Agilent’s and other rotating or robotic arm samplers 2ml, 12X32mm vials are manufactured of Clear. type 1 Class A or Amber, Type 1 Class B borosilicate glass and include a write-in patch for sample identification.

These 2ml clear chromatography vials include 100/PK of 2ml RSA-Pro™ surface-treated glass vials with 9mm screw threads. Any requirement about 2ml clear chromatography vials,please contact AIJIREN.
Volume: 2ml
Usage: Laboratory Analysis
Brand Name: AIJIREN
Printing with Company Logo: Accept

Micro vials are designed to assist in the consistent sampling of low-volume chromatography samples.
Diameter (Metric) Outer: 11.6 mm
Volume (Metric): 0.36 mL
For Use With (Application): GC, HPLC
Neck Style: Short Thread
Shape: Flat Bottom
Height (Metric): 32 mm

Usage: Laboratory Analysis
Logo: Customized Accepted
OEM: Available
Sample: Provided Freely
Packing: 100pcs/pk
Material: Borosilicate Glass

Screw thread closures N9 (9mm) 2ml vials and closures are universally suitable on most autosamplers, convenient in handling, and available in a broad selection of different cap colors and septum materials. They fulfill all requirements with regard to tightness and analytical purity for GC as well as for HPLC. Due to the relatively thin septa penetration is safe and easy.

OEM: Available
Sample: Provided Freely
Packing: 100pcs/pk
Material: Borosilicate Glass
Vial Height(mm): 32±0.3
Mouth Diameter(mm):6.15±0.15
Quantity: 100 vials & 100 caps

Polypropylene vials are an economical alternative to glass for some applications. The vial is primarily constructed from high-quality, durable polypropylene or polymethyl pentene (PMP). This plastic is typically chosen for its chemical resistance, inertness, and transparency. Polypropylene is the most popular plastic material. Polypropylene vials have heat resistance of up to 135 degrees Celsius and are commonly used in chromatographic experiments. PMP has higher heat resistance – up to 175 degrees Celsius – and is transparent, increasing the sample’s visibility inside the sample bottle. The vial typically has a standard 9mm outer diameter, making it compatible with a wide range of autosampler systems commonly used in laboratories.