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20 matches found for drinking water

US EPA Method 547 (Drinking Water Glyphosate by HPLC-FL) on Supelcosil™ SAX1

column SUPELCOSIL SAX1, 25 cm x 4.6 mm I.D., 5 µm particles (59138) column temp. 35 °C mobile phase 5 mM monobasic potassium phosphate (pH 1.9 with phosphoric acid) flow rate 0.5 mL/min sample each analyte at 10 ug/mL in water injection 100 µL detector fluorescence, excitation 338 nm, emissions 455 ...

Analytical Method: Iron in drinking water and boiler water

Instruments and Reagents: Cat.No. 173016 Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017 Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018 Spectroquant® UV/VIS Spectrophotometer Prove 600 or Cat.No. 109748 Spectroquant® Photometer NOVA 30 or Cat.No. 109751 Spectroqua...

Application Notes: Reflectometry – Magnesium in Drinking Water

Reagents: Cat. No. 116124 Reflectoquant® Magnesium Test Cat. No. 117246 Reflectometer RQflex® 20 This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation: The sample can be analyzed in its original form. Analysis: Press the reflectom...

GC Analysis of Trace Odors in Drinking Water on Equity®-5 after SPME using 50/30 μm DVB/Carboxen/PDMS Fiber

sample/matrix 25 mL of water containing 25% NaCl and drinking water odors kit (47529-U) desorption process 3 min at 260 °C extraction headspace, 65 °C (30 min) SPME fiber 2 cm StableFlex coated with 50/30 µm DVB/Carboxen/PDMS (57348-U) column Equity-5, 30 m x 0.25 mm, 0.25 µm (28089-U) oven 60 °C (2...

GC Analysis of Semivolatiles in Drinking Water on a 5% Phenyl Column after SPE using ENVI™-18 DSK

sample preparation SPE (Solid Phase Extraction) sample/matrix acidified drinking water SPE tube/cartridge ENVI-18 DSK SPE Disk, 47 mm (57171) condition 5 mL dichloromethane; 5 mL methanol; 5 mL DI water sample addition 5 mL water sample elution 2 x 5 mL acetonitrile rinsing internal chamber of sampl...

Application Notes Reflectometry – Calcium in Drinking Water

Reagents: Cat.No. 116125 Reflectoquant® Calcium Test Cat.No. 117246 Reflectometer RQflex® 20 This application note pertains to RQflex®20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation: The sample can be analysed in its original form. Analysis: Press the reflectometer ...

GC Analysis of a 7-Component Organochlorine Pesticide Mix in Drinking Water on a 5% Phenyl Column after SPE using Supelclean™ ENVI™-18

sample preparation SPE (Solid Phase Extraction) sample/matrix drinking water spiked with pesticides SPE tube/cartridge Supelclean ENVI-18, 500 mg/6 mL (57064) condition 2 x 6 mL hexane:ethyl ether (1:1); 6 mL methanol; 6 mL DI water sample addition 250 mL water sample at 10 mL/min drying 10 min with...

Analytical Method: Silicon (total) in drinking water

Instruments and Reagents: Cat.No. 173016 Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017 Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018 Spectroquant® UV/VIS Spectrophotometer Prove 600 or Cat.No. 109748 Spectroquant® Photometer NOVA 30 or Cat.No. 109751 Spectroqua...

Application Notes: Reflectometry – Total Hardness in Drinking Water

Related Products • Test Strips and Visual Tests • Reflectoquant® Instruments & Test Kits • VisualTest & MQuant® Test Strips • pH Indicator Tests • Spectroquant® Prove Spectrophotometers • Spectroquant® Test Kits • Water, Food & Environmental Analytics Catalog Related Categories • Application Notes f...

Analytical Method: Ammonium in drinking and surface water

Instruments and Reagents: Cat.No. 173016 Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017 Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018 Spectroquant® UV/VIS Spectrophotometer Prove 600 or Cat.No. 109748 Spectroquant® Photometer NOVA 30 or Cat.No. 109751 Spectroqua...

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...

EPA Method 547: HPLC Analysis of Glyphosate and Glyphosate Degradation Product (Aminomethyl)phosphonic Acid (AMPA) on SUPELCOSIL™ SAX1

column SUPELCOSIL SAX1, 25 cm x 4.6 mm I.D., 5 µm particles (59138) column temp. 38 °C mobile phase [A] 5 mM monobasic potassium phosphate (pH 1.9 with phosphoric acid); [B] methanol; (A:B, 96:4) flow rate 0.5 mL/min sample 100 ng/mL in water injection 100 µL detector fluorescence, excitation 338 nm...

US EPA Method 524.2: GC Analysis of Volatiles on SPB-624 after Purge & Trap using "K" Trap

sample preparation purge is 40 mL/min at 25 °C for 11 min sample/matrix each analyte at 10 ppb in 25 mL water purge trap VOCARB 3000 "K" (24940-U) dry purge 2 min desorption preheat 205 °C desorption process 40 mL/min at 210 °C for 2 min bake 260 °C for 10 min column SPB-624, 30 m x 0.25 mm I.D., 1....

HPLC Analysis of Bisphenol A, Dimethylbisphenol A and Nonylphenol on Ascentis® Express RP-Amide (UV Detection)

column Ascentis Express RP-Amide, 5 cm x 4.6 mm I.D., 2.7 µm particles (53922-U) column temp. 35 °C mobile phase [A] water; [B] acetonitrile gradient 50 to 100% B in 10 min flow rate 1.0 mL/min sample 50 mg/L of each in 50:50, water: acetonitrile injection 10 µL detector UV, 280 nm Analysis Note Thi...

HPLC Analysis of Bisphenol A in Water on Ascentis® Express C18 after SPE using Supelclean™ ENVI-18

SPE tube/cartridge Supelclean ENVI-18, 500 mg/6 mL glass SPE tube (54331-U) condition 1 mL 1% formic acid in acetonitrile, then 1 mL water elution 2 mL 1% formic acid in acetonitrile eluate post-treatment 1 mL aliquot of eluent, and evaporate/reconstitute to 0.5 mL in acetonitrile column Ascentis Ex...

Separation of Polycyclic Aromatic Hydrocarbons

The special HPTLC silica gel 60 RP-18 PAH concentrating zone plate is optimized for high-resolution separations of polycyclic aromatic hydrocarbons (PAH) according to DIN 38409-H13. These compounds result from pyrolysis or incomplete combustion of organic material. Main sources include the exhaust f...

Analytical Method – Silicate in Antifreeze Agents and Corrosion Inhibitors

Corrosion is defined as the transformation of a material resulting from the direct contact with its environment. The corrosion of a material generally leads to an impairment of the proper function of the component made of the material in question. To prevent or at least reduce such damage to a minim...

Application Notes for Photometry & Reflectometry

Our rapid tests offer numerous options for determining the concentration of individual parameters. Whether for water analysis, the measurement of specific food parameters or the control of production processes, our rapid tests are designed to ensure your success. Check out our broad range of applica...

Analytical Method: Iron in industrial water

Instruments and Reagents: Cat.No. 173016 Spectroquant® VIS Spectrophotometer Prove 100 or Cat.No. 173017 Spectroquant® UV/VIS Spectrophotometer Prove 300 or Cat.No. 173018 Spectroquant® UV/VIS Spectrophotometer Prove 600 or Cat.No. 109748 Spectroquant® Photometer NOVA 30 or Cat.No. 109751 Spectroqua...

Analytical Method: Sensitive Measurement of Iron in Water

Related Products • Spectroquant® Prove Spectrophotometers • Spectroquant® Test Kits • Water, Food & Environmental Analytics Catalog Related Categories • Application Notes for Photometry & Reflectometry Materials and reagents: Reagents Cat. No. 114761 – Spectroquant® Iron Test Cat. No. 101262 – Water...