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12ML Breath Sampling Vial – Non 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.
| Product Name | ALWSCI® 12ML Breath Sampling Vial – Non Coated – Non Evacuated |
| Volume | 12mL |
| Neck Type | Screw |
| Bottom | Flat Bottom |
| Vial Size | 15.5x101mm |
| Vial Treatment | Non Coated, Non Evacuated |
| Label | Labelled, No Label |
| Cap Colors | White, Blue, Green, Yellow, Red, Light Blue, Purple, Customized |
| Certificate | CE certificate |
12ML Breath Testing Vial – Coated – 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.
| Product Name | ALWSCI® 12ML Breath Testing Vial – Coated – Evacuated |
| Volume | 12mL |
| Neck Type | Screw |
| Bottom | Flat Bottom |
| Vial Size | 15.5x101mm |
| Vial Treatment | Coated, Evacuated |
| Label | Labelled, No Label |
| Cap Colors | White, Blue, Green, Yellow, Red, Light Blue, Purple, Customized |
| Certificate | CE certificate |
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.
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 |
2ML 8-425 Amber graduated screw-on glass vial with markings
Amber glass vials C0000004 2mL 12x32mm flat base 8-425 with screw thread and label. 100 pieces/pack.
2ML 8-425 Amber Screw-on Glass Vial with Graduated Marking Kit and Packaging
Amber glass vials C0001111 2mL 12x32mm flat base 8-425 with screw thread and label. Black 8-425 open screw cap with red PTFE/white silicone 8mm thick 1.5mm. Packaged in sets. 100 pieces/pack.
2ML 8-425 Clear Glass Vial with Graduated Markings and Packing Point Marking Kit
Clear glass vials C0001176 2mL 12x32mm flat base 8-425 with screw thread and label. Black 8-425 open screw cap with red PTFE 8mm/white silicone 1.5mm thick. Packaged in sets. 100 pieces/pack.
2ML 9-425 Amber Glass Screw-on Bottle with Graduated Markings
Amber glass vials C0000011 2mL 12x32mm flat base 9-425 with screw thread and label. 100 pieces/pack.
2ML 9-425 Amber Screw Vial Graduated With Marking Spot
C0000011 2mL Amber Glass 12x32mm Flat Base 9-425 Screw Thread Vial with Label. 100pcs/pk.
| Product Name | ALWSCI® 2ML 9-425 Amber Screw Vial Graduated With Marking Spot |
| Material | Borosilicate Glass |
| Neck Type | Screw Thread |
| Vial Size | 12×32mm |
| Volume(Metric) | 2 ML |
| Vial Color | Amber |
| Bottom | Flat |
| Cap Included | NO |
| Application | For LC/GC |
| Packaging | 100 pcs Packed in one Box |
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.
2ML Certified 9-425 Vial Kit
ALWSCI Certified vials are tested for cleanliness by HPLC and held to tightest dimensional tolerances in the industry.
2ML clear screw-on bottle 8-425
Clear glass vials C0000001 2mL 12x32mm flat base 8-425 with screw thread. 100 pieces/pack.
2ML transparent screw-on bottle 9-425
Clear glass vials C0000006 2mL 12x32mm flat base 9-425 with screw thread. 100 pieces/pack.
2ML Transparent Screw-Type Bottle Set 8-425 Packaging
Clear glass vials C0001489 2mL 12x32mm flat base 8-425 with screw thread. Black 8-425. Open screw cap with red PTFE 8mm/white silicone 1.5mm thick. Packaged in sets. 100 pieces/pack
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.
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 |
50mm Vent Filter
Self-contained, compact filtration unit for removing bacteria and particles from the air.
8-425 Open Top Screw Closures Pre-Slit
Zhejiang ALWSCI Technologies Co.,Ltd is one of the leading China 8-425 screw thread caps with septa manufacturers and suppliers, welcome to wholesale cheap 8-425 screw thread caps with septa, ptfe liner from us.
Amber screw-on bottle 2ML 8-425
Amber glass vials C0000003 2mL 12x32mm flat base 8-425 with screw thread. 100 pieces/pack.
Amber screw-on bottle 2ML 9-425
Amber glass vials C0000010 2mL 12x32mm flat base 9-425 with screw thread. 100 pieces/pack.
Amber screw-on vial set 2ML 8-425 Pack
Clear glass vials, 2mL, 12x32mm, flat base, 8-425 series, with screw thread. Black 8-425 series, open screw cap with red PTFE 8mm/white silicone 1.5mm thick. Packaged in sets. 100 pieces/pack
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.
Clear glass vial 2ML 8-425 with graduated markings
Clear glass vials C0000002 2mL 12x32mm flat base 8-425 with screw thread and label. 100 pieces/pack.
COD Digestion Test Tube
Clear Screw Test Tube. Rounded/ Flat Bottom. Borosilicate Glass. PTFE/White Silicone Septa. White/ Black Cap. Pre-assembled/ Seperate. For COD Analysis.
GL45 Mobile Phase Cap
GL45 Mobile Phase Caps are hermetically sealing closures for the safe supply of solvents to your HPLC. The screw caps block harmful vapours and protect your HPLC system from contamination.
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 |
Glass Solvent Filter
ALWSCI® Glass Solvent Filter is a device commonly used in laboratories to filter solvents and other liquids to remove impurities and particles. This equipment is critical to ensuring the accuracy and cleanliness of chemical experiments and analyses.
| Product Name | ALWSCI® Glass Solvent Filter |
| Material | Borosilicate |
| Kit Contents | Filter Cup(Including Buchner Funnel) + Aluminum Clamp + GL45 Adaptor + Erlenmeyer Flask;
Filter Cup(Including Buchner Funnel) + Aluminum Clamp + GL45 Adaptor + GL45 Laboratory Glass Bottle |
| Filter Cup Volume | 300ml/ 1000ml |
| Receiver Flask Volume | 500ml/ 1000ml/ 2000ml/ 5000ml |
| Membrane Diameter | 47 mm/ 90mm |
| Colors | Transparent + Blue |
| Package | 1 set Packed in one Carton |
Glass Test Tube with Screw Cap
Glass Screw Test Tube is made from thick walled, mechanically very resistance borosilicate glass.
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.
ICP-MS Plastic Sample Tube
Elemental analysis, analysis of metals and non-metals.
| Product | ICP-MS Plastic Sample Tube |
| Material | Polypropylene PP |
| Volume | 16 mL |
| Color | Translucent |
| Capped | NO |
| Application | For ICP MS Analysis. |
ND24 Sample Vials Kit
ALWSCI is supplying wide range of sample vials, from 2ml to 60ml, Clear/ Amber, used in laboratory. pre-assembled.
Plastic Sample Vial For GFAAS
| Product | Plastic Sample Vial For GFAAS |
| Material | Polyethylene PE |
| Volume | 2mL |
| Color | Translucent |
| Capped | NO |
| Application | For all versions of the programmable sampler dispenser (PSD) sample carousel for the Agilent GFAA. |
QR Code Volumetric Flask
Each flask is printed with a unique QR code.Scan the QR code to access the corresponding calibration certificate.
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 |
S60 Solvent Waste Treatment System
The S60 solvent disposal system is commonly used in laboratories to safely collect and dispose of waste solvents in laboratory environments.
Sample Vial Kit Package
ALWSCI is supplying wide range of sample vials, from 2ml to 60ml, Clear/ Amber, used in laboratory. pre-assembled.
Screw Headspace Vial
10ml and 20ml screw headspace vial is widely used in Headspace and GC, GCMS application.
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 |
Welded MCE Non-Sterile Syringe Filter
Labfil® Welded MCE Non-Sterile Syringe Filter is a high-performance filter suitable for a variety of laboratory and industrial applications, providing reliable sample purification and separation solutions.
| Product Name | Welded MCE Non-Sterile Syringe Filter | ||
| Material | MCE | ||
| Material of Housing | PP | ||
| Effective Filtration Area | 13mm/0.72cm2 | 25mm/3.4cm2 | 30mm/4.5cm2 |
| Pore Size | 0.22 μm /0.45 μm | ||
| Process Volume | ＜10mL(13mm) | ＜100mL(25mm) | ＜150mL(30mm) |
| Maximum Operating Temperature | 40℃-55℃ | ||
| Maximum Operating Pressure | 29 psi-87 psi | ||
| PH | 3-10 | ||
| Application | Chemical Filteration; Biological Filtration; Beverage Filtration | ||
| Package | 100 pcs Packed in one Box | ||
Welded MCE Sterile Syringe Filter
Labfil® Welded MCE Sterile Syringe Filter is a high-performance filter suitable for a variety of laboratory and industrial applications, providing reliable sample purification and separation solutions.
| Product Name | Welded MCE Sterile Syringe Filter | ||
| Material | MCE | ||
| Material of Housing | PP | ||
| Effective Filtration Area | 13mm/0.72cm2 | 25mm/3.4cm2 | 30mm/4.5cm2 |
| Pore Size | 0.22 μm /0.45 μm | ||
| Process Volume | ＜10mL(13mm) | ＜100mL(25mm) | ＜150mL(30mm) |
| Maximum Operating Temperature | 40 ℃-55 ℃ | ||
| Maximum Operating Pressure | 29 psi-87 psi | ||
| PH | 3-10 | ||
| Application | Biological Research, Chemical Analysis, Drug Preparation, Food and Beverage Testing | ||
| Package | 50/100 pcs Packed in one Carton | ||
White 8-425 Open Top Screw Closures
ALWSCI is one of the leading China 8-425 screw thread caps with septa manufacturers and suppliers, welcome to wholesale cheap 8-425 screw thread caps with septa, ptfe liner from us.
