High-Precision Pipetting Articles

TitraSip automated pipetting improves accuracy and precision over manual pipetting case study

MANTECH INC. is a leading manufacturer of automated multi-parameter, titration, BOD and COD laboratory instruments. MANTECH developed the first automated titrator in the world to include automated pipetting capability. In our short history, there are already >1000 TitraSip’s in daily use in accredited laboratories around the globe. The software controlled TitraSip module has proven to ...

Jul. 31, 2012

By MANTECH Inc.

TitraSip automated pipetting: justification over manual pipetting and analysis in beakers case study

MANTECH INC. is a leading manufacturer of automated multi-parameter, titration, BOD and COD laboratory instruments. MANTECH developed the first automated titrator to include automated pipetting. The software controlled TitraSip module has proven to generate results that are accurate, precise and enforceable. Water quality is of paramount importance to ecosystems and human health and the TitraSip ...

Jan. 3, 2012

By MANTECH Inc.

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 ...

Jun. 17, 2010

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 ...

Jun. 17, 2010

Detection of carbaryl in soil

MATRIX: Soil ANALYTE: Carbaryl RANGE OF DETECTION: 40 to 500 ppb MATERIALS: SDI Carbaryl RaPID AssayÒ kit and Sample Diluent. SDI RaPID PrepÔ Soil Collection Kit (optional). SDI RaPID PrepÔ Extraction Kit: Type II (extraction solution, optional) Reagents: Methanol (pesticide grade), distilled or ...

Jun. 17, 2010

Detection of pentachlorophenol in soil

MATRIX: Soil ANALYTES: Pentachlorophenol (PCP) RANGE OF DETECTION: 100 ppb to 10 ppm MATERIALS: Pentachlorophenol RaPID AssayÒ kit and Sample Diluent Reagents: methanol (reagent grade), sodium hydroxide (ACS grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles (polypropylene or ...

Jun. 16, 2010

Detection of carbofuran in soil

MATRIX: Soil ANALYTE: Carbofuran RANGE OF DETECTION: 10 to 500 ppb MATERIALS: Carbofuran RaPID AssayÒ kit and Sample Diluent. Reagents: methanol (pesticide grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles (polypropylene or high density polyethylene, 50 or 60 mL) with ...

Jun. 16, 2010

Detection of chlorothalonil in celery

MATRIX: Celery ANALYTE: Chlorothalonil RANGE OF DETECTION: 20 ppb to 1 ppm MATERIALS: Chlorothalonil RaPID AssayÒ Kit and Sample Diluent Reagents: acetone (pesticide grade), sodium chloride. Equipment: 250 mL polypropylene bottles, 15 mL polypropylene tubes, 13 x 100 mm glass test tubes, 50 mL precision pipet, ...

Jun. 16, 2010

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 ...

Jun. 17, 2010

Procedure for calibration of micropipettors

PURPOSE: Good Laboratory Practice dictates that all equipment used for the generation, measurement or assessment of data shall be adequately tested, calibrated and/or standardized. A procedure describing a pipettor calibration method, records of test performance and repairs should be available for laboratory personnel. This procedure describes a method for evaluating the accuracy and ...

Jun. 16, 2010

Preparation of thiabendazole standards for use in applications of the benomyl/carbendazim rapid assay

GENERAL COMMENTS: This procedure describes the preparation of thiabendazole (TBZ) standards used in applications of the Benomyl/Carbendazim RaPID Assay. Standard concentrations of 10, 50 and 250 ng/mL (ppb) TBZ and a control concentration of 100 ppb TBZ are prepared by making appropriate dilutions of a concentrated TBZ solution in the Benomyl/Carbendazim Sample Diluent. The standards and ...

Jun. 17, 2010

Atrazine accuracy confirmation using EPA certified reference standard

ANALYTE: Atrazine RANGE OF EVALUATION: 0.5 to 4.0 ppb MATERIALS: Atrazine RaPID Assay Kit and Sample Diluent (cat. no. A00051) Reagents: U.S. EPA Reference Standard for atrazine with certified concentration of 1000 μg/mL, in methanol ( NSI Environmental Solutions, Research Triangle Park, NC). Equipment: precision micropipets: 100 ...

Jun. 16, 2010

2,4-D accuracy confirmation using EPA certified reference standard

ANALYTE: 2,4-D RANGE OF EVALUATION: to 40 ppb MATERIALS: 2,4-D RaPID Assay Kit and Sample Diluent (cat. no. A00079) Reagents: U.S. EPA Reference Standard for 2,4-D with certified concentration of 5000 μg/mL, in acetonitrile (N SI Environmental Solutions, Research Triangle Park,N C). Equipment: 100 μL ...

Jun. 16, 2010

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 ...

Jun. 17, 2010

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 ...

Nov. 11, 2009

By Mettler - Toledo Int. Inc

Detection of captan in soil

MATRIX: Soil ANALYTE: Captan RANGE OF DETECTION: 8 to 300 ppm MATERIALS: Captan RaPID Assay, Kit and Sample Diluent. Reagents: acetone (pesticide grade) Equipment: reciprocating shaker, plastic bottles (polypropylene or high density polyethylene, 50 or 60 mL) with plastic lined screw caps, filtration apparatus (funnel and ...

Jun. 16, 2010

Detection of parathion-methyl on gauze wipes

MATRIX: Cotton gauze pad (wipe) ANALYTE: Parathion-methyl RANGE OF DETECTION: 0.08 mg per wipe (100 cm2) MATERIALS: EnviroGard Parathion Plate Kit (item #75000). SDI Wipe Extraction Kit. Protective gloves. WIPE PROCEDURE: Caution: Wear protective gloves for this procedure. Saturate a gauze ...

Jun. 17, 2010

Detection of procymidone in grapes

MATRIX: Grapes ANALYTE: Procymidone RANGE OF DETECTION: 0.4 to 20 ppm MATERIALS: Procymidone RaPID Assay Kit and Sample Diluent Reagents: acetone (pesticide grade), sodium chloride. Equipment: blender with acetone resistant container cup, 50 mL conical tubes, 15 mL polypropylene centrifuge tubes with screw caps, ...

Jun. 16, 2010

Detection of alachlor or atrazine in soy flour

MATRIX: Soy flour ANALYTES: Alachlor and atrazine RANGE OF DETECTION: Alachlor: 20 to 1000 ppb, Atrazine: 14 to 400 ppb. MATERIALS: Alachlor RaPID AssayÒ kit and Sample Diluent. HS Atrazine RaPID AssayÒ kit and Sample Diluent. Reagents: methanol (pesticide grade); concentrated hydrochloric acid (ACS ...

Jun. 17, 2010

Detection of carbendazim in soil

MATRIX: Soil ANALYTE: Carbendazim, a metabolite of benomyl RANGE OF DETECTION: 37.5 to 750 ppb MATERIALS: Benomyl/Carbendazim RaPID Assay kit and Sample Diluent Reagents: methanol (pesticide grade), sodium hydroxide (ACS grade), distilled or deionized water. Equipment: reciprocating shaker, plastic bottles ...

Jun. 16, 2010

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