ReviewsChromatography Membranes

Cytiva 3001-640 Grade 1 Chr Cellulose Chromatography Paper Roll, 3cm Width, 100m Length

  • PACK OF 100 || 100 sheets of no. 1 chromatography filter papers.
  • LARGE || Each sheet measures 23" x 18" and is very thin.
  • FOR SEPARATION || Used in chromatography to separate a sample into its component parts - Used to test for the presence of various materials, to monitor the rate and progress of a reaction or to determine the purity of a product.
  • USEFUL IN FUN EXPERIMENTS || Can be used for various experiments in the laboratory and at home - Paper allows students to separate most water-soluble inks into their original blended pigments to reveal their hidden coloration.
  • ABSORBENT || Absorbs liquids and provides more surface area for evaporation meaning more and faster evaporation which, in turn, means more vapor which is often desired.
Check Stock

Autosampler Vial - 2ml HPLC Vial | 9-425 Amber Vial with Blue Screw Caps | Writing Patch | Graduation | White PTFE & Red Silicone Septa Fit for LC Sampler (100pcs)

  • Screw thread autosampler vials are made of borosilicate glass.
  • 20mL Clear autosampler vial with 20mm jaw cap.
  • Sample Vials with unique thread design ensures consistent seal and can be reused, not volatile, easy to use.
  • Vials can be used for high performance liquid chromatography and gas chromatography for reliable analysis results.
  • Vials require fewer turns to make a tight seal, saving you time, especially when you consider how often vials need to be opened and closed, and how many samples you have.
Check Stock

SimPure MCE Gridded Membrane Filter Sterile, 47mm Diameter and 0.45um Pore Size, Individual Pack Membrane Disc Filter, Hydrophilic Filter Paper, Pack of 100

  • SimPure Mixed Cellulose Ester (MCE) membrane filter is composed of cellulose acetate and cellulose nitrate. the MCE membrane is biologically inert, it is one of the most widely used membranes in analytical and research applications.
  • Gridded filters have clearly defined grid lines spaced at 3.1 mm intervals. The special ink used is non-toxic and completely free from bacterail growth inhibitors.
  • The gridded Mixed Cellulose Ester (MCE) membrane are ideal for colony counting and sterility testing.
  • The gridlines on the membrane's surface eliminate eye fatigue during colony-counting without affecting the growth of colonies. And allows color reactions to be easily observed.
  • Sterile gridded MCE membranes are unsupported, naturally hydrophilic membranes.
Check Stock

Plasmid miniprep kit (50 preps)

  • Kit includes bottle of electrolyte, 1 sanding disc and 6 screw-on cap membranes.
  • Response time (T95 - from 0 to 100 percent) = 8 seconds.
  • Flow dependence after 4 minutes = 25 percent.
Check Stock

CHEMetrics R-7512 Dissolved Oxygen Indigo 1-12 Refill Kit

  • SDI filters to perform Silt Density Index testing for water.
  • Package of 100 Filters - Good for 100 SDI Tests.
  • Compatible with Applied Membranes SDI-2000 and SIMPLE SDI Test Kits.
  • 47mm 0.45M MF white disc hydrophilic membrane filters.
Check Stock

Medela Spare Valves and Membranes - 2 Pack

  • Extra valves & membranes for all Medela Breastpumps..
  • 4 valves and 4 membranes in non-retail packaging.
Check Stock

Dicunoy 20 PCS 3D Floating Display Case, 3.5" Black Coins Display Frame for Antique Challenge Coins, AA Medallion, Jewelry, Shells, Fossils, Gems, Minerals, Rocks, Pins

  • 20 Piece Set - You will get 20 pieces plastic floating frame display holders and stands with diamond shaped presentation stands. It is made of plastic frame, durable PET membranes. Lightweight and easy to arrange..
  • Simple Set Up - Our square frame display case come with simple push-to-open system, it is easy to place and position your objects between plastic membranes and clasp frame together..
  • Display Stand Included - Our display holder stands come with stands, it will make an interesting tabletop display for your prized possessions and get a front and back view of displayed object..
  • 3D Floating Display - You can put your items between two transparent, flexible plastic membranes for a 3D floating effect. It is perfect for display medals, coins, stamps, medallions, jewelry, casino poker chips, and other memorabilia..
  • Dimensions - Square frame size: 3.5" L x 0.8" W x 3.5" H, Display screen size: 2.9" x 2.9". These display cases will display your valuable items clearly and safely..
Check Stock

SH Challenge Coin Display Frame, 3D Floating Display Case Stand Holder, Medallion Medal Specimen Military Coin Clear Box (Black)

  • Material: plastic frame / stand, durable PET membranes..
  • Perfect to display the front and back sides of collectibles..
  • Smooth out membranes by using a hair dryer when there is a wrinkle..
Check Stock

Douglas Laboratories Lecithin 1200 mg | Supports Emulsification and Mobilization of Fats and Cholesterol | 100 Softgels

  • Cell Membranes - Lecithin is needed by every cell in the body and is a key building block of cell membranes, helping them to maintain flexibility..
  • Healthy Circulatory Function - Emulsifiers in the body play an important role in fat digestion and circulatory health..
  • Choline - Lecithin contains choline which is useful for making acetylcholine, an important neurotransmitter..
  • Lecithin - Our powerful product is made from soy lecithin, similar to other pills, softgels and powder supplements..
Check Stock

[12-Count] Papablic Pump Parts Compatible with Spectra S1, S2 and 9 Plus, Incl 8-Count Duckbill Valves for Spectra and Medela Pump in Style, 4-Count Silicone Membrane for Spectra Backflow Protector

  • Compatible Models: 4 x Replaceable silicone membrane for Spectra S1, Spectra S2, and Spectra 9 Plus breast pump. 8x Replaceable duckbill valves for Medela and Spectra pump. Compatible with Spectra S2, Spectra S1, Spectra 9 Plus, Spectra Dew 350 and Medela breastpumps EXCEPT Medela Freestyle, Sonata and Swing-maxi..
  • Same Suction as the Original: We have tested that our duckbill valves and membranes are the same suction power as the as the original one. Designed to replace the breastpump duckbill valve and silicone membranes every 3-6 months..
  • Less Parts to Wash: One Papablic duckbill valve replaces a Medela valve and a Medela membranes. Save money and fewer pump parts to wash, sterilize, and assemble..
  • Easy to Remove: The duckbill valve is specifically designed and equipped with a easy grab pull tab that you can detach and replace the Spectra duckbill valve or medela valve easily..
  • Material: Food-grade Silicone, BPA/DEHP free, Comply with EU and US regulations for materials that contact food. Please note: This is an aftermarket product produced by Papablic Inc. Papablic has no affiliation with or endorsement from Medela or Spectra..
Check Stock

Replacement Valve and Membrane for Medela Breastpumps (Swing, Lactina, Pump in Style), 4X Valves/6x Membranes, Part #87089; Repaces Medela Valve and Medela Membrane

  • BPA Free. Test reports are available online..
  • Membrane are more flexible than the OEM membranes to respond faster to the pressure change during pumping..
  • Valves are better angled for less trapped precious breast milk in them..
  • Storage case included provides better protection plus it is more convenient when traveling..
  • Convenient and valued pack of 4 valves and 6 membranes.
Check Stock