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130 matches found for Pesticides

US EPA Method 632: HPLC Analysis of Pesticides on Ascentis® C18

column Ascentis C18, 25 cm x 4.6 mm I.D., 5 µm particles (581325-U) column temp. 30 °C mobile phase [A] water; [B] acetonitrile gradient 10 to 50% B in 13 min; to 60% B in 10 min; to 90% B in 6 min; held for 5 min flow rate 1.0 mL/min sample as indicated in 16% acetonitrile in water injection 10 µL ...

LC/MS/MS Analysis of Neonicotinoid Pesticides in Dandelion Blossoms on Ascentis® Express C18 after Dispersive SPE (QuEChERS) using Supel™ QuE

sample preparation Dispersive (QuEChERS) sample/matrix 3 g ground dandelion blossoms, homogenized in 10 mL water, spiked at 50ng/g extraction tube Supel QuE Acetate extration tube (55234-U) extraction process add 25 mL of acetonitrile; add contents of Supel QuE acetate extraction tube; shake immedia...

US EPA Method 608/8081/OLM04.2 PEST: GC Analysis of Organochlorine Pesticides on Equity®-1701 (15 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

column Equity-1701, 15 m x 0.10 mm I.D., 0.10 µm (28343-U) oven 100 °C, 25 °C/min to 280 °C carrier gas hydrogen, 40 cm/sec constant sample 50 ppb of a 22 component chlorinated pesticide standard in n-hexane injection 2 µL, splitless (0.75 min) liner 4 mm I.D., single taper inj. temp. 225 °C detecto...

US EPA Method 632: HPLC Analysis of Pesticides on Ascentis® C8

column Ascentis C8, 25 cm x 4.6 mm I.D., 5 µm particles (581425-U) column temp. 30 °C mobile phase [A] DI water; [B] acetonitrile gradient 15 to 25% B in 4 min; to 45% B in 40 min; to 60% B in 6 min; held for 15 min flow rate 1.0 mL/min sample as indicated in 16% acetonitrile in DI water injection 1...

GC/MS/MS Analysis of Pesticides in Chamomile on SLB®-5ms after QuEChERS Cleanup usingSupelClean™ Ultra

sample/matrix chamomile extraction tube Supel™ Que non-buffered extraction tube (4 mg NaSO4, 1 g NaCl in 12 mL tube) (55294-U) extraction process Add 10 mL acetonitrile/IS Extraction Solvent and allow to sit 15 minutes, then shake or vortex 30 sec. Add contents of Supel Que non-buffered extraction t...

LC/MS/MS Analysis of Pesticide Residues in Dates on the Ascentis® Express RP-Amide Column after QuEChERS Extraction

sample preparation Dilute 100 µL of cleaned extract to a final volume of 1 mL in 5 mM ammonium formate/0.1% formic acid in water; transfer diluted sample to vial for LC/MS/MS analysis sample/matrix 5 g ground dates spiked with pesticides at 10 ng/g extraction process add 10 mL water and 10 mL aceton...

US EPA Method 608/8081/OLM04.2 PEST: GC Analysis of Organochlorine Pesticides on SLB®-35ms, 340 °C Final Temp.

column SLB-35ms, 30 m x 0.25 mm I.D., 0.25 µm (29804-U) oven 100 °C (2 min), 15 °C/min to 340 °C (5 min) carrier gas helium, 0.9 mL/min sample 200 ppm organochlorine pesticide standard mix (CRM46845) containing 22 analytes, diluted to 50 ppb with hexane injection 1µL, splitless (0.75 min) liner 4 mm...

GC/MS/MS Analysis of Pesticides in Ginseng on SLB®-5ms after QuEChERS Cleanup usingSupelClean™ Ultra

sample/matrix powdered ginseng extraction tube Supel Que non-buffered extraction tube (4 mg NaSO4, 1 g NaCl in 12 mL tube) (55294-U) extraction process Add 10 mL ACN/IS Extraction Solvent and allow to sit 15 minutes, then shake or vortex 30 sec. Add contents of Supel Que nonbuffered extraction tube ...

LC/MS Analysis of Pesticides on Ascentis® C18 (5 cm x 2.1 mm x 3 μm)

column Ascentis C18, 5 cm x 2.1 mm I.D., 3 µm particles (581300-U) column temp. 35 °C mobile phase [A] 0.1% ammonium acetate, pH unadjusted; [B] acetonitrile gradient 10 to 80% B in 10 min flow rate 0.2 mL/min sample 1 µg/mL each in 90:10 water:acetonitrile injection 5 µL detector MS, (+) ESI, Selec...

LC/MS/MS Analysis of Pesticide Residues in Pistachios on the Ascentis® Express RP-Amide Column after QuEChERS Extraction

sample preparation Dilute 100 µL of cleaned extract to a final volume of 1 mL in 5 mM ammonium formate/0.1% formic acid in water. Transfer diluted sample to vial for LC/MS/MS analysis sample/matrix 5 g ground pistachios spiked with pesticides at 10 ng/g extraction tube PK50 Supel QuE Citrate (EN) Tu...

GC Analysis of Pesticides in Wine on SLB®-5ms after SPME using 85 μm Polyacrylate Fiber

sample/matrix white wine spiked with 50 ppb pesticides desorption process 250 °C for 5 min extraction immersion, room temp (30 min) SPME fiber 85 µm polyacrylate (57304) column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 60 °C (1 min), 15 °C/min to 100 °C, 7 °C/min to 300 °C (1 min) carrier...

EN Method 2005/108/EC: GC Analysis of Pesticide/PAH Compounds on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 50 °C (3 min), 25 C/min to 250 °C (3 min), 4 °C/min to 325 C (5 min) carrier gas helium, 0.9 mL/min constant sample 26 analytes at 50 ppb each in methylene chloride injection 0.5 µL, pulsed (15 psi until 0.20 min) splitless (1.0 min) liner ...

US EPA Method 8141: GC Analysis of Organophosphorus Pesticides (OP-Pest) on Equity®-5, NPD Detection

column Equity-5, 30m x 0.25 mm I.D., 0.25 µm (28089-U) oven 120 C (3 min), 5 C/min, to 300 °C (5 min) carrier gas helium, 25 cm/sec @ 120 °C sample 40 ng on-column of a custom organophosphorus pesticides mix injection 1.0 µL splitless (0.5 min) liner 4 mm I.D., double taper inj. temp. 250 °C detecto...

GC Analysis of a 17-Component Pesticide Mix on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

column SLB-5ms, 10 m x 0.10 mm I.D., 0.10 µm (28465-U) oven 40 °C (1 min), 80 °C/min to 160 °C, 5 °C/min to 340 °C (2 min) carrier gas helium, 0.52 mL/min sample 17-component pesticide mix, each analyte at 0.8-2.0 µg/mL in hexane:acetone (50:50) injection 0.5 µL10:1 split inj. temp. 280 °C MSD inter...

US EPA Method 608/8081/OLM04.2 PEST: GC Analysis of Organochlorine Pesticides on SLB®-5ms, 340 °C Final Temp.

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 100 °C (2 min), 15 °C/min to 340 °C (5 min) carrier gas helium, 0.9 mL/min sample 200 ppm organochlorine pesticide standard mix (CRM46845) containing 22 analytes, diluted to 50 ppb with hexane injection 1µL, splitless (0.75 min) liner 4 mm ...

LC/MS/MS Analysis of Pesticides in Cannabis on the Ascentis RP-Amide after QuEChERS Extraction and Cleanup Using Supel QuE Verde

column Ascentis RP-Amide, 10 cm x 2.1 mm I.D., 3.0 µm guard column Ascentis RP-Amide Supelguard guard cartridge, 2 cm x 2.1 mm I.D., 5 µm mobile phase [A] 5 mM ammonium formate, 0.1% formic acid in 95:5 water:acetonitrile; [B] 5 mM ammonium formate, 0.1% formic acid in 5:95 water:acetonitrile gradie...

HPLC Analysis of Urea, Carbamate, Triazine, Aniline Pesticides on Discovery® C18

column Discovery C18, 15 cm x 4.6 mm I.D., 5 µm particles (504955) column temp. 20 °C mobile phase [A] acetonitrile; [B] water flow rate 2 mL/min injection 1 µL detector UV, 214 nm Categories Analytical Chromatography, Environmental Analysis, Pesticides & Herbicides, Organics, Chromatograms, HPLC Ch...

GC Analysis of Pesticides in Avocado on SLB®-5ms (20 m x 0.18 mm I.D., 0.36 μm) after QuEChERS Cleanup using Supel™ QuE Z-Sep+, Fast GC Analysis

sample preparation Dispersive (QuEChERS) sample/matrix Avocado spiked with pesticides at 20 ng/g extraction tube Supel QuE Acetate extraction tube (55234-U) extraction process add 25 mL of acetonitrile; shake for 1 minute; add contents of Supel QuE acetate extraction tube; shake immediately for 1 mi...

GC Analysis of a 10-Component Pesticide Mix on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

column SLB-5ms, 10 m x 0.10 mm I.D., 0.10 µm (28465-U) oven 40 °C (1 min), 80 °C/min to 160 °C, 5 °C/min to 340 °C (2 min) carrier gas helium, 0.52 mL/min sample 10-component pesticide mix, each analyte at 0.8-2.0 µg/mL in hexane:acetone (50:50) injection 0.5 µL10:1 split inj. temp. 280 °C MSD inter...

GC Analysis of Pesticides in Spinach on SLB®-5ms after QuEChERS Extraction then SPE Clean-up using Supelclean™ ENVI-Carb/NH2 Dual Layer

sample preparation Solid Phase Extraction (SPE) sample/matrix Spinach extract by QuEChERS, as described in the pretreatment step extraction process to 10 g homogenized spinach, add 10 mL acetonitrile, shake 1 min, add contents of Supel QuE acetate tube (55234-U), shake 1 min, centrifuge, transfer ex...

US EPA Method 8141: GC Analysis of Organophosphorus Pesticides (OP-Pest) on SPB®-608

column SPB-608, 30 m x 0.25 mm I.D., 0.25 µm (24103-U) oven 60 °C (1 min), 5 °C/min to 200 °C, 15 °C/min to 300 °C (5 min) carrier gas helium, 1.5 mL/min sample nitrogen-phosphorous pesticide standard, each analyte at 100 ppb in MTBE injection 2.0 µL, splitless (0.75 min) liner 4 mm I.D., single tap...

GC Analysis of Pesticide Residues in Cannabis on SLB®-5ms after QuEChERS Extraction then QuEChERS Cleanup using Supel™ QuE Verde

sample preparation Solid Phase Extraction (QuEChERS, Dispersive) sample preparation place supernatant in amber low adsorption vial for GC/MS/MS analysis. sample/matrix ground cannabis, 1 gm extraction tube Supel QuE Citrate (55227-U) extraction process Add 10 mL water to sample, allow to sit for 30 ...

US EPA Method 8141: GC Analysis of Organophosphorus Pesticides (OP-Pest) on Equity®-5, MS Detection

column Equity-5, 30 m x 0.25 mm I.D., 0.25 µm (28089-U) oven 120 °C (3 min), 5 ºC/min to 270 °C (5 min) carrier gas helium, 30 cm/sec @ 120 ºC sample 40 ng on-column of a custom organophosphorus pesticides mix injection 1 µL liner 4 mm I.D., double taper inj. temp. 250 °C MSD interface 325 °C scan r...

GC Analysis of Agricultural Pesticides (Standard) on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D, 0.25 µm (28471-U) oven 100 °C (1 min), 10 °C/min to 300 °C (5 min) carrier gas helium, 1 mL/min constant sample 29-component pesticide mix plus 1 internal standard, each at 100 ppb in toluene injection 1.0 µLpulsed (20 psi until 0.20 min), splitless (1.0 min) line...

OSHA Method 62: GC Analysis of Organophosphorus Pesticides (OP-Pest) on SPB®-20 after Collection/Desorption using ORBO™-49P

adsorbent tube ORBO-49P (20350) column SPB-20, 60 m x 0.53 mm I.D., 1.0 µm film (available on request) oven 200 °C (2 min) to 250 °C at 4 °C/min carrier gas helium, 8 mL/min sample calibration standard: 12 µg/mL each pesticide, 78 µg/mL tributyl phosphate (int. std.) in hexane (blank: 270 mg Supelpa...

GC Analysis of a 12-Component Pesticide Mix on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

column SLB-5ms, 10 m x 0.10 mm I.D., 0.10 µm (28465-U) oven 40 °C (1 min), 80 °C/min to 160 °C, 5 °C/min to 340 °C (2 min) carrier gas helium, 0.52 mL/min sample 12-component pesticide mix, each analyte at 0.8-2.0 µg/mL in hexane:acetone (50:50) injection 0.5 µL10:1 split inj. temp. 280 °C MSD inter...

US EPA Method 608/8081/OLM04.2 PEST: GC Analysis of Organochlorine Pesticides on SPB®-608

column SPB-608, 30 m x 0.25 mm I.D., 0.25 µm (24103-U) oven 100 °C (2 min), 15 °C/min to 300 °C (5 min) carrier gas helium, 0.9 mL/min, constant flow sample chlorinated pesticide standard (cat. No. 46845-U), 50 ppb in methylene chloride injection 2.0 µL, splitless (0.75 min) liner 4 mm I.D. single t...

HPLC Analysis of Organo-acid Pesticides on Discovery® C8

column Discovery C8, 15 cm x 4.6 mm I.D., 5 µm particles (59353-U) column temp. 20 °C mobile phase [A] 25 mM potassium phosphate, (pH 2.3): [B] acetonitrile; (60:40, A:B) flow rate 2 mL/min injection 1 µL detector UV, 214 nm Categories Analytical Chromatography, Environmental Analysis, Organics, Pes...

GC Analysis of a 19-Component Pesticide Mix on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

column SLB-5ms, 10 m x 0.10 mm I.D., 0.10 µm (28465-U) oven 40 °C (1 min), 80 °C/min to 160 °C, 5 °C/min to 340 °C (2 min) carrier gas helium, 0.52 mL/min sample 19-component pesticide mix, each analyte at 0.8-2.0 µg/mL in hexane:acetone (50:50) injection 0.5 µL, 10:1 split inj. temp. 280 °C MSD int...

LC/MS MS Analysis of Pesticides in Kidney on Chromolith® Performance 50-2mm

sample preparation A mixture of eight pesticides was prepared utilizing ACN as a solvent. (See Analysis Note for more information. ) column Chromolith® Performance 50 x 2 mm (1.52007.0001) column temp. 25 °C mobile phase [A] ACN + 0.1% FA; [B] water + 0.1% FA; gradient 20% A; to 80% A in 6 min; to 7...