sampling vials Articles

  • VialTweeter at UIS250L - Intensive Sonication of Vials

    Sonication is a very effective method for the mixing, homogenizing, emulsifying, dispersing, ...

  • Analysis of biogenic amines food and physiological samples

    Histamine and other polyamines such as Putrescine, Cadaverine, Spermidine and Spermine are products of decomposition. The level of histamine, in particular, has been used as a regulatory guideline for degree of decomposition in fish. Also, Histamine and Tyramine levels are of interest to producers of wine and cheese. The polyamines, Spermidine, Spermine and Putrescine are elevated in neoplastic ...


    By Pickering Laboratories, Inc.

  • Passive sampling methods for contaminated sediments: State of the science for organic contaminants

    This manuscript surveys the literature on passive sampler methods (PSMs) used in contaminated sediments to assess the chemical activity of organic contaminants. The chemical activity in turn dictates the reactivity and bioavailability of contaminants in sediment. Approaches to measure specific binding of compounds to sediment components, e.g., amorphous carbon or specific types of reduced ...


    By John Wiley & Sons, Ltd.

  • Detection of chlorpyrifos in air using low volume polyurethane foam (PUF) sampling with immunoassay

    MATRIX: Air samples ANALYTE: Chlorpyrifos RANGE OF DETECTION: 0.088 to 1.200 mg/m3 MATERIALS: Chlorpyrifos RaPID AssayÒ Kit and Sample Diluent. Reagents: methanol (pesticide grade). Equipment: 40 mL glass vials with Teflon lined caps, 13 x 100 mm glass test tubes, 5 mL and 20 mL serological pipets, micropipet ...


  • Increasing sample throughput in method 8260 using the novel oven design of the Clarus 600 GC/MS

    U.S. Environmental Protection Agency (EPA) Method 8260 – volatile organic analysis by gas chromatography/mass spectrometry (GC/MS) – is one of the most common GC/MS methods performed in environmental laboratories. To increase profits and meet customer needs, many environmental laboratories need to analyze more samples faster, increasing throughput. Achieving high levels of throughput ...


    By PerkinElmer, Inc.

  • The particle counter useful for formulation and process developement of parenterals

    Comments by major pharmaceutical company research scientist. We've found the Spectrex to be a very useful tool in formulation and process development for parenteral products in cases where the volume of solution available is limited, and we are primarily interested either in 1) differences in relative numbers and sizes of particles when comparing various formulations or processing treatments, or ...


    By Spectrex Corporation

  • Detection of atrazine and metolachlor in soil

    Matrix: Soil Analytes: Atrazine and Metolachlor Range of Detection: Atrazine: 0.5-25.0 ppm, Metolachlor: 0.5-25.0 ppm Materials: Rapid Assay Test Kit SDI BTEX Sample Extraction Kit - Part No. A00165EA Dilution Vials with Caps – Part Nos. 1048700/1038303 25uL Fixed Volume Pipettor Z00257 Pipet ...


  • 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 methomyl dislodgeable foliar residues from grape leaves

    MATRIX: Grape Leaf Surface ANALYTE: Methomyl RANGE OF DETECTION: Low range: 0.0025 mg/cm2 to 0.037 mg/cm2 (2.46 ng/cm2 to 37.0 ng/cm2), High range: 0.012 mg/cm2 to 0.185 mg/cm2 (12.3 ng/cm2 to 185 ng/cm2) MATERIALS: Methomyl RaPID AssayÒ Kit and Sample Diluent. RaPID Prepä DFR Wash. Equipment: 2.54 cm (1 ...


  • Detection of aldicarb in citrus juices

    MATRIX: Citrus Juice: 100% juice (natural strength) or juice concentrate ANALYTE: Aldicarb LIMIT OF DETECTION: 37 ppb in 100% juices and approximately 30 ppb in juice concentrates. RANGE OF DETECTION: 37 ppb to 15 ppm in 100% juices and approximately 30 ppb to 12 ppm in juice concentrates. ...


  • Aminoglycoside Antibiotics in Feed Apramycin, Gentamicin, Neomycin

    Aminoglycoside antibiotics are among those commonly used in animal feeds to manage intestinal microorganisms. The beneficial effects include improved growth and generally healthier animal populations. Use of antibiotics creates a demand for analytical procedures to verify concentrations in pre-mixes and feeds and in some instances for residue analysis in animal products. This note describes a ...


    By Pickering Laboratories, Inc.

  • Ultrasonics: a sound mixing technology

    When liquid mixing, dispersing or homogenising is required in the lab, people tend to think of rotary mixers, although this traditional technology has limitations that can be costly both in time and material. Ultrasonics is the preferred innovative technology for various mixing applications in the lab. It combines extremely efficient and ultra effective high shear power with the added benefit of ...

  • 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 atrazine and 2,4-d in raw milk

    MATRIX: Raw Milk ANALYTES: Atrazine, 2,4-D RANGE OF DETECTION: Atrazine: 5 to 250 ppb, 2,4-D: 0.05 to 2.5 ppm MATERIALS: RaPID Assay, Kit and Sample Diluent for Atrazine and 2,4-D Reagents: methanol (pesticide grade), glacial acetic acid, distilled or deionized water, diatomacoeus earth (Celite 545). Equipment: ...


  • Detection of PCB on gauze wipes

    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 Kit and Sample Diluent. RaPID Prepä PCB Sample Extraction Kit. Reagents: hexane (pesticide grade). Equipment: 3 inch x 3 inch cotton gauze pads ...


  • 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 chlorpyrifos on whole oats

    MATRIX: Whole grain oats ANALYTE: Chlorpyrifos RANGE OF DETECTION: 15 ppb to 204 ppb MATERIALS: Chlorpyrifos RaPID Assay and Chlorpyrifos Sample Diluent. RaPID Prepä Soil Collection Kit. Reagents: methanol (pesticide grade). Equipment: 13x100 mm glass test tubes; 5.0 mL serological pipet, precision pipet capable ...


  • ChlorAC Buffer

    Introduction Trace analysis of carbamate insecticide residues in water is a routine requirement in the U.S. Since several of the common carbamates — Carbaryl, Oxamyl, Hydroxycarbofuran — are labile in water due to oxidation or hydrolysis, the samples and standards must be preserved in order to obtain valid results. USEPA Method 531.1 specifies pH adjustment, ...


    By Pickering Laboratories, Inc.

  • 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 ...


Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you