116754MM

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Application Notes: Reflectometry – Hydroxymethylfurfural (HMF) in honey

Hydroxymethylfurfural (HMF) in honey – reflectometric determination after after conversion with a barbituric acid derivative and an aminophenazone derivative

Analytical Method: Analytical Quality Assurance, Standard for Chlorine dioxide

Preparation of a standard solution for Chlorine dioxide acc. to DIN EN ISO 7393

Analytical Method: Analytical Quality Assurance, Standard for Sulfide

Preparation of a standard solution for Sulfide

Analytical Method: Selenium in Water

Method: Photometric determination with 3,3'-Diaminobenzidine

Analytical Method: Analytical Quality Assurance, Standard for Sulfite

Preparation of a standard solution for Sulfite

Determination of Calcium in Beer

Using the Spectroquant® photometric system, we outline a photometric analysis of calcium levels in beer.

Determination of o-Phosphate in Ground and Surface Water

Photometric determination of phosphate ions in water with ammonium molybdate using Spectroquant® test kits and a UV/VIS spectrophotometer.

Analytical Method: Nitrite in potato instant powder

Photometric determination using the Griess method subsequent to extraction

Analytical Method: Aluminium (total) in lime stone

Photometric determination with Chromazurole S subsequent to fusion melting

Analytical Method: Aluminium (total) in effluents, high organic content

Photometric determination with Chromazurole S subsequent to acid mineralisation

Analytical Method: Sulfite in Shrimps

Method: Photometric determination with 2,2'-dinitro-5,5'-dithiodibenzoic acid (Ellman's reagent)

Analytical Method: Analytical Quality Assurance, Standard for Hydrogen peroxide

Preparation of a standard solution for Hydrogen peroxide

Analytical Method: Aluminium (total) in effluents

Photometric determination with Chromazurole S subsequent to acid mineralisation; DIN decomposition

Determination of Nitrite in Soils

Photometric determination of nitrite ions in soil samples by Griess method using Spectroquant® test kits and spectrophotometer.

Determination of Nitrate in Soils

Learn about the photometric determination of nitrate ions in soil using Spectroquant® test kits and spectrophotometer.

Determination of Nitrite in Compost

Photometric determination of nitrite ions in compost by Griess method using Spectroquant®</sup test kits and spectrophotometer.

Analytical Method: Analytical Quality Assurance, Standard for Formaldehyde

Preparation of a standard solution for Formaldehyde

Determination of Nitrate in Compost

Learn about the photometric determination of nitrate ions in compost using Spectroquant® test kits and spectrophotometer.

Analytical Method: Copper (total) in feedstuffs

Photometric determination with Cuprizon subsequent to acid mineralisation

Analytical Method: Copper (total) in effluents, high organic content

Photometric determination with Cuprizon subsequent to acid mineralisation

Analytical Method: Potassium in Soils

Turbidimetric determination subsequent to extraction with CAL buffer analogous LUFA.

Determination of Ammonium in Mineral Fertilizer

Photometric determination of ammonium ions in mineral fertilizer samples by indophenol blue method using Spectroquant® test kits and spectrophotometer.

Ammonium Photometric Determination in Drinking and Surface Water

Photometric determination of ammonium ions in drinking and surface water samples by indophenol blue method using Spectroquant® test kits and spectrophotometer.

Analytical Method: Sulfate in Building Materials

Photometric or turbidimetric determination subsequent to water extraction/fusion melting

Analytical Method: Nickel (total) in effluents (Photometry, DIN decomposition)

Photometric determination with Dimethylglyoxime subsequent to acid mineralisation; DIN decomposition

Determination of Nitrate in Manure

Learn about the photometric determination of nitrate ions in manure using Spectroquant® test kits and spectrophotometer.

Photometric Determination of Ammonium in Manure

Learn about the photometric determination of ammonium ions in manure samples by indophenol blue method using Spectroquant ® test kits and spectrophotometer.

Determination of Ammonium in Organic Fertilizer

Photometric determination of ammonium ions in organic fertilizers by indophenol blue method using Spectroquant® test kits and spectrophotometer.

Determination of Phosphate in Manure

Photometric determination of phosphate ions in manure samples using phosphorus molybdenum blue and Spectroquant® test kits.

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