pipette tip Articles

  • How Dirty Are You? Part 5…Micropipette Tips

    Pipettes are common tools for drawing and dispensing precise volumes in chemical, biological and medical labs. Thanks to the invention of micropipettes and other techniques, we don’t do mouth pipetting anymore. Positive displacement pipettes are particularly useful because the air gap in standard micropipettes are replaced by capillary pistons, which greatly improve the accuracy ...


    By Restek Corporation

  • Preparation of <25x or >100x dilutions with the rapid prep universal range extension kit

    GENERAL COMMENTS: This procedure describes how to prepare dilutions of less than 25x or greater than 100x using the appropriate RaPID AssaysÒ Sample Diluent and components of the RaPID PrepÔ Universal Range Extension Kit. Preparing dilutions of 25x to 100x are already described in the package insert of the Universal Range Extension Kit. Serial dilutions using components of the ...


  • Characterization of Polymer Carbon Sieves, Graphitized Polymer Carbons and Graphitized Carbon Blacks for Sample Preparation Applications

    The use of carbons in sample preparation techniques such as solid phase extraction (SPE) and air sampling has been ongoing for several decades. Recent advancements in sample preparation techniques have led to the use of carbons in micro-SPE (i.e., pipette tips packed with particles), solid phase microextraction (SPME) techniques and carbon coatings for both gas and liquid sample preparation ...


    By Sigma-Aldrich Co., LLC

  • Myco3 fumonisin test kit USDA GIPSA certified part # 7000130

    The following data is for the verification of the performance of the Myco4 Fumonisin Test Kit for the quantitative detection of fumonisins B1, B2, and B3 in whole corn, corn meal and corn germ. The Myco4 Fumonisin test kit can quickly and accurately detect the harmful mycotoxin Fumonisin in grains and feed. This mold causes Fusarium Ear Rot in corn which is the most common corn disease in the ...


  • Myco3 DON test kit USDA GIPSA certified part # 7000135

    The following data is for the verification of the performance of the Myco4™ DON Test Kit for the quantitative detection of deoxynivalenol (vomitoxin) in barley, malted barley, oats, corn and wheat. The Myco4 DON test kit can quickly and accurately detect the harmful mycotoxin DON (deoxynivalenol) in grains and feed. Due to the health concerns associated with DON, the U.S. has set advisory ...


  • Detection of PCB on gauze wipes using the rapid assay test system

    MATRIX: Cotton gauze pad (wipe) ANALYTE: PCB RANGE OF DETECTION: Low range: 5 to 100 mg per wipe. High range: 25 to 500 mg per wipe MATERIALS: PCB RaPID AssayÒ Test Kit (A00133) and Sample Diluent (A00136). PCB Wipe Sample Extraction Kit (A00137WA). Reagents: Methanol (ACS Reagent grade). Equipment: 3 inch x 3 ...


  • Emulsion breakingtechniques for oil in water solvent extractions

    Certain types of samples, such as those containing detergent, may form emulsions when doing an oil in water extraction into a solvent. The boundary between the solvent and the sample will have an emulsion layer that lias a cloudy or milky appearance as shown in tlris photo. According to U.S. EPA Method 1664, "if the emulsion is greater than one-third the volume of the solvent layer. Hie ...


    By Spectro Scientific

  • MIT community takes the Earth Day Challenge

    Take Action! Earn Points! Win Prizes! Written by Rachael Budowle, MIT Sustainability Program.You can read the original new in MIT NewsEarth Day has been reinvented at MIT. The Institute has a long history of Earth Day fairs, film series, colloquia, and other ...

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