2ML 9-425 Clear Glass Screw Vial With 0.2ML Micro Insert & Writing Patch Vial

C0001937 0.2mL 9-425 Clear Glass Screw Thread Micro-Vial with Write-on Patch. 12x32mm. 100pcs/pk.

Product Name	ALWSCI^®2ML 9-425 Clear Glass Screw Vial With 0.2ML Micro Insert & Writing Patch Vial
Material	Borosilicate Glass
Neck Type	Screw Thread
Vial Size	12×32mm
Volume(Metric)	2 ML
Vial Color	Clear
Bottom	Flat
Micro Insert	Integrated 0.2ml Glass Conical Base Micro insert
Graduated & Marking Spot	YES
Application	For LC/GC
Packaging	100 pcs Packed in one Box

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Categories: Chromatography Consumables, Chromatography Vials Tags: alw, ALWSCI® 2ML 9-425 Clear Glass Screw Vial With 0.2ML Micro Insert & Writing Patch Vial Brand: ALW

1) Description

2ML 9-425 Clear Glass Screw Vial With Micro Insert & Writing Patch Vial is a commonly used sample container in laboratories, especially suitable for chromatographic analysis methods such as high-performance liquid chromatography (HPLC) and gas chromatography (GC). Sample loading. The combination of the automatic injection bottle and the inner insert tube provides an efficient and reliable way to process and analyze trace samples, and is one of the indispensable tools in laboratory analysis work.

2) Application

Gas Chromatography (GC): Used to store and transport samples of gases or volatile organic compounds. In GC analysis, the sample needs to volatilize at high temperature, so there are high requirements for the sealing of the vial.
Liquid Chromatography (LC): In particular, High Performance Liquid Chromatography (HPLC) analysis is used to store liquid samples. The 9-425 vial is designed for use with autosamplers, allowing for accurate and rapid injection of samples into the column.
Sample Preservation: This vial is also commonly used to preserve chemicals, biological samples, or other sensitive materials for long periods of time, especially samples that need to be preserved under specific conditions.

CAT.NO,	Description	Packaging
C0001937	0.2mL 9-425 Clear Glass Screw Thread Micro-Vial with Write-on Patch. 12x32mm.	100 pcs/pk.

Product Name	ALWSCI^®2ML 9-425 Clear Glass Screw Vial With 0.2ML Micro Insert & Writing Patch Vial
Material	Borosilicate Glass
Neck Type	Screw Thread
Vial Size	12×32mm
Volume(Metric)	2 ML
Vial Color	Clear
Bottom	Flat
Micro Insert	Integrated 0.2ml Glass Conical Base Micro insert
Graduated & Marking Spot	YES
Application	For LC/GC
Packaging	100 pcs Packed in one Box

SPE Cartridges

High-performance SPE cartridges with customizable sorbents and formats for efficient, reliable sample cleanup across a wide range of analytical workflows.

1) Description

Our Solid Phase Extraction (SPE) cartridges are designed for reliable and efficient sample preparation in analytical, environmental, food, and pharmaceutical laboratories. Available in a wide range of bed masses, volumes, and sorbent phases, these cartridges ensure consistent performance for trace-level enrichment, cleanup, and fractionation.

Made from high-purity medical-grade polypropylene, our cartridges are compatible with SPE systems. With customizable configurations including C18, Silica, PSA, NH₂ and more, they provide flexible solutions for diverse sample matrices and analytical methods.

2) Features

▶ Wide Sorbent Selection: Available with C18, Silica, PSA, NH₂, and custom sorbents to suit various analyte chemistries.
▶ Multiple Bed Masses & Volumes: Common formats include 3 mL and 6 mL with bed masses from 200 mg to 1000 mg, adaptable to method requirements.
▶ High Purity Polypropylene Housing: Free from extractables and compatible with most organic solvents.
▶ Excellent Flow Consistency: Uniform packing ensures minimal channeling and optimal retention/recovery rates.
▶ Standard connection Format: Compatible with positive pressure manifolds, vacuum manifolds, and automated SPE instruments.
▶ Secure Packaging: Packed in cleanroom environments; standard pack sizes include 30 or 50 pcs per bag.

3) Application

Environmental Analysis: Pre-treatment of water, soil, and wastewater samples for pesticide, PAH, PFAS, and heavy metal testing.

Food Safety Testing: Extraction of veterinary drug residues, mycotoxins, or additives from food matrices.

Pharmaceutical and Biomedical Research: Sample cleanup prior to LC-MS, GC-MS, and HPLC analysis.

Forensic and Clinical Studies: Extraction of drugs, metabolites, or biomarkers from biological fluids.

General Analytical Chemistry: Clean-up and enrichment of trace organic and inorganic analytes.

4) Sorbent Selection Guide by Target Compound Type

Target Compound Type	Recommended Sorbent(s)	Retention Mechanism	Typical Sample Types	Notes
Non-polar compounds (e.g., pesticides, PAHs, steroids)	C18, C8	Hydrophobic interaction	Water, serum, urine, plant extracts	C18 offers stronger retention than C8; ideal for reversed-phase cleanup
Moderately polar compounds (e.g., phenols, mycotoxins)	C18, Polymeric RP (e.g., PS-DVB)	Hydrophobic + π-π interaction	Food, biological fluids	Polymeric sorbents are more water-wettable, suitable for polar solvents
Highly polar compounds (e.g., organic acids, catechols)	HLB, NH₂, Diol	Hydrogen bonding, dipole-dipole	Urine, environmental water	HLB retains a broad range; NH₂ useful for weak anion exch. or polar groups
Weak acids (e.g., carboxylic acids, ibuprofen)	SAX, NH₂	Anion exchange	Plasma, pharmaceutical	SAX strongly retains acidic groups; pH optimization required
Weak bases (e.g., amines, alkaloids, β-blockers)	SCX, CM, Cation-Exchange HLB	Cation exchange	Plant extract, drugs in serum	SCX retains positively charged species; elution with NH₄OH or MeOH
Neutral small molecules (e.g., caffeine, parabens)	C18, Polymeric RP	Hydrophobic	Beverage, urine, cosmetics	Use mild elution to avoid co-extracting matrix
Aromatic compounds (e.g., benzene derivatives, flavonoids)	GCB, Phenyl	π-π interaction	Tea, herbal extracts, soil	GCB excels at planar aromatic removal; may adsorb target-test recovery
Sugars, sugar alcohols (e.g., glucose, mannitol)	Amine, Diol	Normal-phase	Beverage, fermentation broth	Not ideal for reversed-phase; use in NP or HILIC mode
Peptides / proteins (cleanup purpose)	C18 (for peptide), GCB (for protein removal)	Size exclusion / interaction	Serum, plasma	Use protein precipitation prior to SPE for better recovery
Hormones & endocrine disruptors (e.g., estradiol, BPA)	HLB, C18, CN	Hydrophobic, mixed-mode	Environmental water, cosmetics	HLB provides broader range capture for trace organics
Pesticides (polar & non-polar)	C18, GCB/PSA combo, QuEChERS + SPE	Multi-mode	Fruit/vegetables, grains	Use multi-layer or tandem SPE for complex matrix cleanup

Categories: Chromatography Consumables, SPE

HPLC Laboratory Syringe 2-Part Without Needle

This product is made of premium PP materials,which has good chemical resistance. All lots of this product have been manufactured in a clean environment under IS0 9001.In additional,all syringes are designed to match ALWSCl syringe filters and they also can be used with ALWSCI sample vials together.

Category: Chromatography Consumables

12ML Breath Testing Vial – Coated – Non Evacuated

ALWSCI® 12ML Breath Testing Vial, as a product of the breath testing series, is specially designed to solve the accuracy and reliability problems of breath testing.

Categories: Chromatography Consumables, Chromatography Vials

20ML 30ML 40ML 60ML VOC Vial

VOC Vials are specifically designed for the collection and storage of samples containing volatile organic compounds (VOCs).

Product Name	ALWSCI^®VOC Vial
Material	Borosilicate Glass
Vial Sizes	27.5x57mm; 27.5x84mm; 27.5×95mm; 27.5x140mm
Vial Colors	Clear/ Amber
Volume	20mL/ 30mL/ 40mL/ 60mL
Application	For the collection and storage of water samples.
Packaging	100 pcs Packed in one Box

Categories: Chromatography Consumables, Chromatography Vials Tags: alw, ALWSCI® VOC Vial Brand: ALW

40ML Pre-Cleaned & Certified EPA TOC Vial

40ML Pre-Cleaned & Certified EPA TOC Vials are specialized containers designed for the collection and storage of samples for testing total organic carbon (TOC), and other chemical analyses required by environmental protocols.

Categories: Chromatography Consumables, Chromatography Vials Brand: ALW

S60 Solvent Waste System

Laboratory S60 solvent waste system, typically used for the safe collection and disposal of waste solvents in a laboratory setting.

Product Name	ALWSCI^®S60 Solvent Waste System
Content	S60 Solvent Safety Waste Cap; Fitting; Connection for Hose Connector; Activated Carbon Exhaust Filter; Container
Cap Material	PP+PTFE
Number of Ports in Cap	3/4/5 (Excluding Activated Carbon Exhaust Filter Port)
Fitting Material	PP
Fitting Sizes	3.2mm ID
Package	1 pc Packed in one box

Categories: Chromatography Consumables, Chromatography Data Systems Tags: alw, ALWSCI® S60 Solvent Waste System Brand: ALW

40ML Pre-Cleaned EPA VOA Vial

Pre-Cleaned EPA VOA Vials are specialized containers designed for the collection and storage of samples for testing volatile organic compounds (VOCs), total organic carbon (TOC), and other chemical analyses required by environmental protocols.

Product Name	ALWSCI^®Pre-Cleaned EPA VOA Vial
Material	Borosilicate Glass
Vial Sizes	27.5x57mm; 27.5×95mm; 27.5x140mm
Vial Colors	Clear/ Amber
Volume	20mL/ 40mL/ 60mL
Dust Cover	Y/N
Application	For the collection and storage of water samples.
Packaging	100/ 72 pcs Packed in one Box

Categories: Chromatography Consumables, Chromatography Vials Tags: alw, ALWSCI® Pre-Cleaned EPA VOA Vial Brand: ALW

Barcoded Vials & 2D Barcode Vials

ALWSCI® 12ML Breath Testing Vial, as a product of the breath testing series, is specially designed to solve the accuracy and reliability problems of breath testing.

Categories: Chromatography Consumables, Chromatography Vials

GL45 Safety Cap

GL45 Safety Cap is a sealing system designed to improve laboratory safety. Through its innovative sealing and venting features, it effectively prevents chemical leakage and evaporation.

Product Name	ALWSCI^®GL45 Safety Cap
Material	PP+ PTFE
Kit Contents	Air Valve(Including Time Strip)+ PP/Peek Fitting/ PP/Peek Blind Plug
PP/PEEK Fitting Size	1/4”-28 fitting for 1/8” OD tubing
Number of Ports in Cap	2/ 3/ 4
Cap Color	Black
Packgaing	1 pc Packed in one Box

Categories: Caps & Septa, Chromatography Consumables Tags: alw, ALWSCI® GL45 Safety Cap Brand: ALW

2ML 9-425 Clear Screw Vial Graduated With Marking Spot

C0000008 2mL Clear Glass 12x32mm Flat Base 9-425 Screw Thread Vial with Label. 100pcs/pk.