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130 matches found for Pesticides

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...

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...

GC Analysis of Organophosphorus Pesticides (OP-Pest) on a 5% Phenyl Column after SPME using 100 μm PDMS Fiber

sample/matrix 50 ppb each in 1.5 mL saturated salt water, pH 7.2 extraction 20 min immersion with rapid stirring SPME fiber polydimethylsiloxane, 100 µm (57300-U) column 5% phenyl polysiloxane, 30 m x 0.25 mm I.D., 0.25 µm (Supelco equivalent, SLB-5ms, 28471-U) oven 60 °C (1 min) to 300 °C at 12 °C/...

LC/MS Analysis of Pesticides on Ascentis® Express Biphenyl

column Ascentis Express Biphenyl, 10 cm x 3.0 mm, 2.7 µm particles (64066-U) mobile phase 10mM ammonium formate (70:30 water:acetonitrile) SW pH 7.0 (not adjusted) flow rate 0.6 mL/min pressure 1363 psi (94 bar) sample 300 ng/mL in 85:15, water:methanol injection 5 µL detector MS ESI(+), TOF, XIC Fe...

TLC Analysis of Some Pesticides on HPTLC DIOL F254s

plate 1.05636 HPTLC pre-coated plate DIOL F 254 (1.05636.0001, 1.12668.0001) eluent [A] petroleum benzine (40 - 60°); [B] acetone; (90:10, A:B) migration distance 7 cm chamber normal chamber without chamber saturation sample 0.3 μL detector in situ evaluation with TLC/HPTLC scanner (Camag) UV 238 nm...

TLC Analysis of Some Pesticides on HPTLC pre-coated plate DIOl F 254s

plate HPTLC pre-coated plate DIOL F 254s eluent petroleum benzine (40 - 600)/acetone 85/15 (v/v) migration distance 7 cm chamber normal chamber without chamber saturation sample application volume 300 nL detection in situ-evaluation with TLC/HPTLG scanner (Camag) UV 230 nm Featured Industry Environm...

Analysis of Pesticides in Black Tea by GC/MS/MS on SLB® Using Supelclean™ Ultra Cleanup

sample preparation sample pretreatment: 1 gm sample in 50 mL centrifuge tube, add 10 mL water sample preparation Add QC check solution to each extract prior to GC/MS/MS analysis. extraction tube Supel™ Que non-buffered extraction tube (55294-U) clean-up process Add approx. 100 mg of annhydrous sodiu...

US EPA Method 608.1/608.2: GC Analysis of Organochlorine Pesticides on Equity®-1701

column Equity-1701, 30 m x 0.25 mm I.D., 0.25 µm (28372-U) oven 75 °C (2 min), 15 °C/min to 280 °C (5 min) carrier gas helium, 1.2 mL/min. constant sample mixture of 608.1 and 608.2 calibration solutions (40351-U and 40352-U) diluted to 100 ppb in n-hexane injection 1 µL, splitless (splitter open af...

US EPA Method 608.1/608.2: 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 75 °C (2 min), 15 °C/min to 300 °C (5 min) carrier gas helium, 1.2 mL/min. constant sample mixture of 608.1 and 608.2 calibration solutions (40351-U and 40352-U) diluted to 100 ppb in n-hexane injection 1 µL, splitless (splitter open after ...

GC Analysis of a 20-Component Organochlorine Pesticide Mix in Water on a 5% Phenyl Column after SPE using Supelclean™ ENVI™-8

sample preparation SPE (Solid Phase Extraction) sample/matrix waste water spiked with pesticides SPE tube/cartridge Supelclean ENVI-8, glass hardware, 500 mg/6 mL (57107 (500 mg/6 mL); 57108 (1 g/6 mL)) condition 3 mL methanol; h 2 mL 5% methanol in water sample addition load sample at 5 mL/min dryi...

US EPA Method 608.1/608.2: GC Analysis of Organochlorine Pesticides on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 75 °C (2 min), 15 °C/min to 300 °C (5 min) carrier gas helium, 1.2 mL/min constant sample mixture of 608.1 and 608.2 calibration solutions (40351-U and 40352-U) diluted to 100 ppb in n-hexane injection 1 µL, splitless (splitter open after 0...

US EPA Method TO-10/IP-8 and ASTM® D4861: GC Analysis of Pesticides on SPB®-608 after Collection/Desorption using ORBO™-1000

sample/matrix polyurethane foam (PUF) spiked with 250 ng each pesticide adsorbent tube ORBO-1000 (20557) column SPB-608, 30 m x 0.53 mm I.D., 0.5 µm film (25312) oven 150 °C (1 min) to 270 °C at 4 °C/min carrier gas helium, 7 mL/min injection 1 µL detector ECD Categories Analytical Chromatography, G...

HPLC Analysis of Coumachlor Enantiomers on Astec® CHIROBIOTIC® V

column CHIROBIOTIC V, 25 cm x 4.6 mm I.D., 5 µm particles (11024AST) column temp. 25 °C mobile phase [A] 20 mM ammonium nitrate, pH 5.5; [B] THF; (75:25, A:B) flow rate 0.75 mL/min sample 2.5 mg/mL in methanol injection 2 µL detector UV, 254 nm Categories Analytical Chromatography, Chiral Applicatio...

HPLC Analysis of Devrinol (Napropamide) Enantiomers on Astec® CHIROBIOTIC® V

column CHIROBIOTIC V, 25 cm x 4.6 mm I.D., 5 µm particles (11024AST) column temp. 25 °C mobile phase [A] 0.1% triethylamine, pH 5.0; [B] THF; (80:20, A:B) flow rate 1 mL/min sample 1 mg/mL in methanol injection 1 µL detector UV, 254 nm Categories Analytical Chromatography, Chiral Applications, Envir...

HPLC Analysis of Coumachlor Enantiomers on Astec® CYCLOBOND® I 2000 DM

column CYCLOBOND I 2000 DM, 25 cm x 4.6 mm I.D., 5 µm particles (20924AST) column temp. 25 °C mobile phase [A] acetonitrile; [B] 20 mM ammonium acetate, pH 2.9; (20:80, A:B) flow rate 0.8 mL/min sample coumachlor, 1 mg/mL in acetonitrile:water (50:50) injection 3 µL detector UV, 230 nm Categories An...

LiChrospher® HPTLC Plates Optimized for High-Throughput Separations

Our unique LiChrospher® HPTLC plates are the first thin layer chromatography plates based on spherical silica particles. Compared to standard HPTLC plates, they offer maximum performance and speed, thus enabling high-throughput analyses of complex samples. Improved detection limits LiChrospher® HPTL...

HPLC Analysis of Coumafuryl Enantiomers on Astec® CHIROBIOTIC® V

column CHIROBIOTIC V, 25 cm x 4.6 mm I.D., 5 µm particles (11024AST) column temp. 25 °C mobile phase [A] 20 mM ammonium nitrate, pH 5.5; [B] THF; (90:10, A:B) flow rate 1.2 mL/min sample 2 mg/mL in methanol injection 1 µL detector UV, 254 nm Categories Analytical Chromatography, Chiral Applications,...

Selecting a GC Column for Specific Industries/Applications

We know that only the most accurate analytical products will do. That’s why we offer the Supelco portfolio of analytical GC columns, providing you the accuracy, precision and consistency you need. Gas chromatography, first established in the 1950′s, is a mature analytical technique with many establi...

LC/MS Analysis of Melamine and Hydrolysis Products on Ascentis® Express HILIC

column Ascentis Express HILIC, 5 cm x 2.1 mm I.D., 2.7 µm particles (53934-U) column temp. 35 °C mobile phase 5 mM ammonium formate in 95:5 (v/v) acetonitrile:water flow rate 0.2 mL/min sample 1 mg/L in mobile phase injection 2 µL detector MS, ESI(+), full scan Categories Analytical Chromatography, ...

Selecting a GC Column for Specific Methods

Related Links • GC analysis • GC Workflow tools • GC Sample preparation • Selecting a GC Column for Specific Industries/Applications • Selecting a GC Column by a Specific Stationary Phase • Capillary GC Columns for GC x GC • Ionic liquid capillary and SLB® i-series columns • Application/Chromatogram...

HPLC Analysis of Bromacil Enantiomers on Astec® CHIROBIOTIC® T

column CHIROBIOTIC T, 25 cm x 4.6 mm I.D., 5 µm particles (12024AST) column temp. 23 °C mobile phase [A] water; [B] ethanol; (60:40, A:B) flow rate 0.6 mL/min sample 1 mg/mL in methanol injection 2 µL detector UV, 215 nm Categories Analytical Chromatography, Chiral Applications, Pesticides & Herbici...

LC/MS Analysis of Cyanuric Acid on Ascentis® Express HILIC

column Ascentis Express HILIC, 5 cm x 2.1 mm I.D., 2.7 µm particles (53934-U) column temp. 35 °C mobile phase 5 mM ammonium formate in 95:5 (v/v) acetonitrile:water flow rate 0.2 mL/min pressure 328 psi (22.6 bar) sample 1 µg/mL in mobile phase injection 2 µL detector MS, ESI(-), SIR mode Categories...

Determination of Fipronil and Fipronil Sulfone in Food Using Purospher STAR RP-18 Endcapped Column and UV Detection

Fipronil is normally used as a broad spectrum insecticide to treat dogs and cats for fleas and to combat red lice in poultry. Fipronil sulfone is a degradation product of fipronil, and is more toxic to organisms than the parent compound. Fipronil is a phenylpyrazole pesticide and its use with food p...

HPLC Analysis of Ancymidol Enantiomers on Astec® CYCLOBOND® I 2000 HP-RSP

column CYCLOBOND I 2000 HP-RSP, 25 cm x 4.6 mm I.D., 5 µm particles (24024AST) column temp. 35 °C mobile phase [A] 5 mM ammonium acetate, pH 6.0; [B] acetonitrile; (80:20, A:B) flow rate 1 mL/min sample 1 mg/mL in methanol injection 5 µL detector UV, 215 nm Categories Analytical Chromatography, Chir...

HPLC Analysis of Bromacil Enantiomers on Astec® CHIROBIOTIC® T2

column CHIROBIOTIC T2, 25 cm x 4.6 mm I.D., 5 µm particles (16024AST) column temp. 25 °C mobile phase [A] water; [B] ethanol; (70:30, A:B) flow rate 1 mL/min sample 1 mg/mL in methanol injection 1 µL detector UV, 254 nm Categories Analytical Chromatography, Chiral Applications, Pesticides & Herbicid...

HPLC Analysis of Paraquat and Diquat on SUPELCOSIL™ LC-18 after SPE using ENVI™-8 DSK

sample preparation ENVI-8 DSK, 47 mm (57172) sample preparation SPE (Solid Phase Extraction) sample/matrix drinking water adjusted to pH to 10. SPE tube/cartridge ENVI-8 DSK SPE Disk, 47 mm (57172) condition 10 mL acetonitrile; 2 x 10 mL reagent water; 10 mL conditioning solvent A (5 g cetyl trimeth...

GC Analysis of 'Positive List' Chemicals (Mix 1) on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 80 °C (2 min), 5 °C/min to 300 °C (4 min) carrier gas helium, 1 mL/min constant sample each pesticide at 20 ppm in acetone injection 1.0 µLsplitless (1 min) inj. temp. 250 °C MSD interface 300 °C scan range m/z 40-450 Categories Analytical ...

HPLC Analysis of 2(4-Chlorophenoxy) Propionic Acid Enantiomers on Astec® CHIROBIOTIC® T

column CHIROBIOTIC T, 25 cm x 4.6 mm I.D., 5 µm particles (12024AST) column temp. 25 °C mobile phase 0.1 wt% ammonium formate in methanol flow rate 1 mL/min sample 2 mg/mL in methanol injection 5 µL detector UV, 235 nm Categories Analytical Chromatography, Chiral Applications, Environmental, Pestici...

GC Analysis of 'Positive List' Chemicals (Mix 6) on SLB®-5ms

column SLB-5ms, 30 m x 0.25 mm I.D., 0.25 µm (28471-U) oven 80 °C (2 min), 5 °C/min to 300 °C (4 min) carrier gas helium, 1 mL/min constant sample each pesticide at 20 ppm in acetone injection 1 µLsplitless (1 min) inj. temp. 250 °C MSD interface 300 °C scan range m/z 40-450 Categories Analytical Ch...

LC/MS Analysis of Ancymidol Enantiomers on Astec® CYCLOBOND® I 2000 HP-RSP

column CYCLOBOND I 2000 HP-RSP, 25 cm x 4.6 mm I.D., 5 µm particles (24024AST) column temp. 35 °C mobile phase [A] 5 mM ammonium acetate, pH 6.0; [B] acetonitrile; (80:20, A:B) flow rate 1 mL/min sample 1 mg/mL in methanol injection 5 µL detector MS (m/z = 257) Categories Analytical Chromatography, ...