pipette Articles

  • Histocom medizin technik gains pipette valibration quality, speed and reliablity with METTLER TOLEDO

    Regular pipette calibration is essential in order to ensure accurate pipette performance, maintaining reliable results throughout its lifetime. Histocom Medizin Technik, based near Vienna, chose METTLER TOLEDO’s XP26PC and MCP to provide high quality, reliable and rapid pipette calibration services for its more than 100 laboratories. The accurate, reliable, timely and regulatory-compliant ...


    By Mettler - Toledo Int. Inc

  • Fitting performance of particle-size distribution models on data derived by conventional and laser diffraction techniques

    Mathematical description of most classical particle size distribution (PSD) data is often used for estimating soil hydraulic properties. Fast laser diffraction (LD) techniques now provide more detailed PSDs, but deriving a function to characterize the entire range of sizes is a major challenge. The aim of this study was to compare the fitting performance of seven PSD functions with one to four ...

  • Detection of chlorpyrifos in formulations

    MATRIX: Formulations ANALYTE: Chlorpyrifos RANGE OF DETECTION: 0.5% to 1.5% MATERIALS: InQuest OP/Carbamates 25-Test Screening Kit (Item #A00122) Wash Solution B for Organophosphates (Item #A00126) Universal Range Extension Kit (Item #A00235) Eppendorf Adjustable Volume Pipette, 0.5 to 2.5 mL (Item #A00238) Glass ...


  • 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 ...


  • 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 ...


  • Detection of PCB in water using the ensys test kit

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: 1260: 50 ppb 1254: 50 ppb 1248: 100 ppb 1242: 200 ppb 1232: 400 ppb 1016: 400 ppb MATERIALS: Ensys PCB 12 Test Kit, item # 7020301. Ensys PCB Soil Extraction Kit #7020300EA. Clean tap or deionized water. Equipment: Ensys Field System ...


  • 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 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 ...


  • How can I measure Salt in food?

    Sodium is a mineral required by the body for normal functions, but excessive intake can cause high blood pressure and hypertension. This has lead governments and regulatory bodies to focus on monitoring the levels of salt in foods in order to reduce the risk of these health affects. Canned foods are of particular concern as these often contain relatively high levels of salt. ...


    By Camlab Limited

  • How can I test the accuracy of my volumetric glassware?

    A huge range of tests in the laboratory require the use of volumetric glassware such as bulb or volumetric pipettes, volumetric flasks, ...


    By Camlab Limited

  • 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 ...


  • Detection of carbendazim in milk

    MATRIX: Milk, homogenized ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 5 to 100 ppb MATERIALS: Benomyl/Carbendazim RaPID AssayÒ Kit and Sample Diluent. Reagents: Methanol (pesticide grade), glacial acetic acid, distilled or deionized water. Equipment: 15 mL polypropylene centrifuge tubes ...


  • Determination of brominated flame retardants in Jukskei River catchment area in Gauteng, South Africa

    Brominated flame retardants (BFRs) are considered to be environmental pollutants due to their toxicity, persistence and ubiquity in the environment. Little information is known about the presence of brominated flame retardants in South Africa's water systems. Therefore, this study examined and compared different extraction methods (liquid–liquid (LL) vs. solid phase (SP) for water, Soxhlet ...


    By IWA Publishing

  • Detection of thiabendazole in grapefruit juice

    MATRIX: Grapefruit Juice ANALYTE: Thiabendazole (TBZ) RANGE OF DETECTION: 10 to 250 ppb MATERIALS: Benomyl/ Carbendazim RaPID AssayÒ Kit and Sample Diluent. TBZ Standards (0, 10, 50 and 250 ppb TBZ) prepared in Sample Diluent. Reagents: ethanol and ethyl acetate (pesticide grade), 2M ammonium chloride (53.5 g/L ...


  • 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

  • Emulsion-Breaking Techniques for Accurate Oil in Water Measurements

    A White Paper discusses emulsion-breaking techniques for ensuring accurate oil in water measurements. Certain water samples, such as those containing detergent, may form an emulsion when oil in water extraction into a solvent is done. In order to ensure an accurate measurement, the emulsion must be broken. Six techniques are described that can be used for reducing an emulsion ...


    By Spectro Scientific

  • Chromium detection in water and soil...

    What is chromium? Chromium is a metal that is widely distributed in the earth’s crust (soil and rocks), air and water. Naturally occurring chromium occurs mainly in the chromium (III) form as chromite ore, which contains oxygen, chromium (III) and other metals such as iron. Chromium (VI) compounds are produced commercially from chromite ore for a wide variety of uses. ...


    By Camlab Limited

  • Relating Certain Concepts

    I wrote about a forty year logarithmic growth of technology in the April 2007 issue of Lab Manager . We talked about increasing numbers and kinds of instruments, the increasing number of analytes, the need for greater and greater sensitivity, and the need for data validation and normalization. Let’s now tackle that first facet – instrumentation. Instruments are developed for a few basic reasons: ...


  • 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 ...

  • Buy Smarter – what questions should you ask when buying a Spectrophotometer?

    Spectrophotometers are relied on by a wide range of laboratories, for tests ranging from specific parameters, like chlorine or metals concentrations, right through to complex analyses of reaction kinetics. When choosing a spectrophotometer the range of specifications and price is vast, so take the time to list the features you need before you buy and make sure you choose the right one. ...


    By Camlab Limited

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