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Lab Supplies

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20mL Headspace Vials, 20mm Crimp-top, Rounded Bottom (pack of 100) 20mL Headspace Vials, 20mm Crimp-top, Rounded Bottom (pack of 100)
Lab Supplies, Sample Bottles and Septa

20mL Headspace Vials, 20mm Crimp-top, Rounded Bottom (pack of 100)

20mL Headspace Vials Suitable for imported and domestic model automatic samplers Sample bottles are available in clear or brown colors The bottle mouth design ensures perfect sealing, high-precision processing technology,...
$38.60
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Spotting capillary tube, 0.3 mm×100 mm Spotting capillary tube, 0.3 mm×100 mm
Capillary Tubes, Discount

Spotting capillary tube, 0.3 mm×100 mm

name：Spotting capillary tube brand：J&K Scientific Specification：Inner diameter 0.3mm，Length 100mm Material: glass Package:1000 pieces per tube，500 pieces per tube use to：Glass spotting capillaries are widely used for thin-layer spotting in biochemistry, plant...
$12.99
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Tube rack for 50mL centrifuge tubes, 25-well Tube rack for 50mL centrifuge tubes, 25-well
Centrifuge tubes, Discount

Tube rack for 50mL centrifuge tubes, 25-well

The design with upper and lower holes is suitable for two sets of 5-hole 50mL centrifuge tubes.Made from sturdy, high-quality polypropylene.The robust rack comes in packs of 10, is foldable,...
$38.60
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Glass fiber paper, GF/D, 47 mm, 2.7 μm
Glass Fiber Paper, Lab Supplies

Glass fiber paper, GF/D, 47 mm, 2.7 μm

Glass fibre filter paper is widely used in laboratory filtration and separation due to their high filtration accuracy, high flow rates, ultra low pressure drop, high load capacity, low extractables...
$21.43
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Rubber sleeve stoppers, Joint No.: 19/22, 100 pcs
Lab Supplies, Rubber sleeve stoppers

Rubber sleeve stoppers, Joint No.: 19/22, 100 pcs

Uses include outgassing NMR tubes, pressure venting or adding reactants via syringe.Hollow, plug-type stopper fits into the neck of the glassware apparatusSleeve extension fits over the neck for a secure...
$8.88
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Test tubes, 5 ml, 12 x 75 mm, PS, 500 pcs/pack
Lab Supplies

Test tubes, 5 ml, 12 x 75 mm, PS, 500 pcs/pack

      A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or...
$25.55
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PCR tubes, 0.2 ml, strips of 8, thin-wall, 125 strips/pack
Lab Supplies

PCR tubes, 0.2 ml, strips of 8, thin-wall, 125 strips/pack

      plasticware products are manufactured from prime virgin polypropylenes. This result in tubes, strips and tips that exhibit a perfect balance between transparency, softness, robustness, antistatic characteristics and...
$107.69
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NH2 SPE Cartridges, bed wt. 500 mg, volume 6 ml, 30 pcs/pack
Lab Supplies

NH2 SPE Cartridges, bed wt. 500 mg, volume 6 ml, 30 pcs/pack

Specifications NH2 SPE Cartridge, 500 mg/6 mL, 30/Pk ATTRIBUTE NAME ATTRIBUTE VALUE Base type Silica-based Sorbent NH2 SPE Cartridges Format Cartridge Column Dimension 500 mg/6 mL Sorbent weight 500 mg...
$13.66
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Test tube caps, 12mm O.D., blue, suit for 12 x 75 mm tubes
Lab Supplies

Test tube caps, 12mm O.D., blue, suit for 12 x 75 mm tubes

    Description       Test tube caps are designed to fit into test tubes and round cuvettes. Push fit caps for 12mm diameter tubes, available in seven colours (ideal...
$37.58
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Sample tube caps, strip of 8, 125 strips/pack
Lab Supplies

Sample tube caps, strip of 8, 125 strips/pack

      8-strip Caps for use with 0.2 ml 8-strip Tubes. Frosted, flat Caps for Standard PCR Writeable surface provides easy sample identification Precision-molded design provides seamless application and...
$40.45
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Chemicals

Resource Center

Main uses of test tube rack

      The main purpose of the test tube... Read more

What issues should we pay attention to when using pipetting filter tips?

What issues should we pay attention to when using pipetting... Read more

Carboxylic acid ester hydrolyzes to form carboxylic acid

Carboxylic acid ester hydrolyzes to form carboxylic acidReaction example Reaction... Read more

How to seal crimp-top headspace bottles

The crimp-sealed vial is a type of sample bottle used... Read more

Operating Steps for Transparent Storage Sample Bottles

Transparent storage sample bottles are made of glass, and when... Read more

Three Types of Sample Bottle Caps and Their Differences

Sample bottles come with three types of caps: crimp caps,... Read more

Thin-Layer Chromatography (TLC) Procedure and Principles

Thin-Layer Chromatography (TLC) is based on the affinity separation of... Read more

Differences Between Melting Point Capillary Tubes and Spotting Capillary Tubes

1. Introduction and Applications of Melting Point Capillary Tubes: Melting... Read more

The uses of laboratory chemical test tube racks include

Holding Test Tubes: One of the fundamental purposes of a... Read more

How to install and use laboratory test tube racks

Test tube racks are commonly used instruments in laboratories, facilitating... Read more

Pipette Tips Selection and Buying Guide

The selection of pipette tips is crucial for the accuracy... Read more

Centrifuge Tube Rack Classification and Selection

Structure of Conventional Centrifuge Tube Rack: Stand: Provides overall support.... Read more

Cutting method of glass capillary tube

1. Manual cutting1. Prepare toolsHand cutting requires the following tools:... Read more

Application scope and characteristics of glass capillary tubes

1. Overview of glass capillary tubesA glass capillary tube is... Read more

Instructions for using threaded headspace vials

The manual capper allows for the easy and secure removal... Read more

Operating Procedure for Headspace Sample Vials

Set parameters and place the sample. Set temperatures for "Sample,"... Read more

Method for Determining Capillary Melting Point:

Apparatus: A setup comprising a heating bath, thermometer, and assembly... Read more

Characteristics of Several Common Filter Membranes:

1. Nylon Membrane: Features: Good temperature resistance, can withstand 121°C... Read more

Differences Between Organic Microporous Membrane and Aqueous Microporous Membrane

Organic Microporous Membrane: Organic microporous membranes are made of organic... Read more

Working Principle and Applications of Sterile Microporous Membrane

The sterile microporous membrane is a filtration material made of... Read more

Choosing the Material for Cuvettes: Quartz or Glass?

The phenomenon of choosing or using cuvettes improperly, leading to... Read more

How to Properly Use and Precautions for Cuvettes

      When using cuvettes, ensure that the two... Read more

What is a Medicine Spoon and How to Use it Correctly

A medicine spoon is an item related to pharmaceuticals. Indeed,... Read more

Precautions for Laboratory Spoon Usage

Choose a laboratory spoon of an appropriate size based on... Read more

Correct Use of Ear Syringe

The ear syringe, also known as an ear bulb, dust... Read more

Classification of Thin Layer Chromatography Silica Plates

I. Classification by Material Glass Silica Plates: Utilizing smooth and... Read more

Sample Bottle Cap Liner: Material, Types, and Usage

Sample bottle cap liners are a common laboratory item used... Read more

Basic Properties and Applications of Sodium Hexafluorosilicate

I. Basic Properties of Sodium Hexafluorosilicate Sodium hexafluorosilicate is a... Read more

Guide to Selecting Chromatography Vial Accessories: Septa, Caps, and Vials

Compared to many sophisticated analytical instruments in the laboratory, vials... Read more

How to Use Laboratory Reagents and Consumables Safely?

The use of laboratory reagents and consumables is an indispensable... Read more

Methods for Cleaning Headspace Vials in Laboratories

Methods for Cleaning Headspace Vials in Laboratories Headspace vials, primarily... Read more

Selection and Usage Details of Headspace Glass Vials

Headspace vials are common consumables used in gas phase experiments,... Read more

Thin-Layer Chromatography (TLC) User Guide

Thin-Layer Chromatography (TLC) is a highly useful technique for monitoring... Read more

Glass Capillary Tubes: Common Applications and Usage Guidelines

I. Definition and Common Applications of Glass Capillary Tubes: Glass... Read more

Centrifuge Tube Specifications, Classification, and Functions

Centrifuge Tube Types: 1. Based on Size: Large Centrifuge Tubes... Read more

Differences between Plastic and Glass Centrifuge Tubes

Centrifuge tubes commonly found in the market are mainly divided... Read more

Instructions for Using Centrifuge Tubes and Precautions

Microliter centrifuge tubes, also known as EP tubes, are small... Read more

Correct Usage Method and Steps for Pipettes

A complete pipetting cycle involves steps such as pipette tip... Read more

Pipettor Usage Precautions

Before use, calibration is necessary, typically every three months. For... Read more

How to Choose Laboratory Consumables?

The personnel responsible for consumables should regularly inventory all consumables... Read more

Choosing the Right Material for Laboratory Consumables

Commonly used laboratory consumables, such as pipette tips, pipettes, and... Read more

Summary of Common Laboratory Consumables Classification

Plastic Products Plastic ware, beakers, dilution bottles, wash bottles, plastic... Read more

Materials commonly used for laboratory consumables

In general, commonly used laboratory items such as pipette tips,... Read more

Chemical Reagent Usage and Management System

Adherence to principles that are both conducive to usage and... Read more

Ideal replacement of 4,4’-biphenyldicarboxylic acid——BFDCA and its derivatives

J&K Scientific exclusively offers two monomers developed by Prof. Yin.... Read more

Inno Portal – The Haiping Xia Group

Prof. Xia started to work at Southern University of Science... Read more

Carbolong – Novel Multifunctional Chain Compounds of Multiple Alkynyl Groups

What is Carbolong? Carbolong is a new class of multi-functional... Read more

Macmillan Imidazolidinone Organocatalysts

Chiral imidazolidinone organocatalysts (developed by Professor David MacMillan in 2000)... Read more

The Top 9 Click Chemistry Life Science Applications you need to know

Coined by K. Barry Sharpless, Hartmuth C. Kolb, and M.G.... Read more

Chemical waste disposal guide

Want to avoid violation fines and enhance lab safety when... Read more

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