Chemical analysis

Applied Filters:

facet applications:Chemical analysis

facet applications:Photometry and reflectometry

facet content type:Protocol

Showing 1-30 of 65 results

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 Sulfide

Preparation of a standard solution for Sulfide

Analytical Method: Aluminium (total) in effluents

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

Analytical Method: Analytical Quality Assurance, Standard for Free Chlorine (dichloroisocyanuric acid)

AQA Standard for free chlorine - Preparation of a standard solution for free chlorine

Derivatization of Fatty acids to FAMEs

Explore how GC can be used to analyze fatty acids either as free fatty acids or as fatty acid methyl esters.

Analytical Method: Lead (total) in effluents

Photometric determination with PAR subsequent to acid mineralisation; DIN decomposition

Veterinary Drug Residues

The use of veterinary drugs may be integral to the process of raising food producing animals and fish. These can include antibiotics, hormones, and steroids.

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: Copper (total) in effluents, high organic content

Photometric determination with Cuprizon subsequent to acid mineralisation

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

Photometric determination with Chromazurole S subsequent to acid mineralisation

Analytical Method: Analytical Quality Assurance, Standard for Free Chlorine (DIN)

Preparation of a standard solution for free Chlorine according to DIN EN ISO 7393

Bromine in Drinking Water, Swimming-Pool Water, Wastewater and Disinfection Solutions

Spectrophotometric determination of bromine with dipropyl-p-phenylenediamine (DPD) in drinking water, swimming-pool water, wastewater, and disinfection solutions in a range of 0.020 – 10.00 mg/L.

Ammonium in Effluents

Step-by-step method describing the photometric determination of ammonium ions in effluents using Spectroquant® test kits and spectrophotometer.

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

Photometric determination with Dimethylglyoxime subsequent to acid mineralisation; DIN decomposition

Determination of Bisphenol A in Drinking Water

A comprehensive sample preparation and analytical procedure was developed by Supelco for determining BPA in drinking water.

Cobalt in Wastewater From the Production and Casting of Non-ferrous Metals

Cobalt in wastewater from the production and casting of non-ferrous metals

Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17943

High performance, reliability, and reproducibility of HS-SPME in combination with GC/MS for the determination of VOCs in water was proven in an interlaboratory trial. The new ISO 17943 using HS-SPME is an improvement on existing official methods for this determination

Determination of Ammonium in Soils

Ammonium is the naturally preferred source of nitrogen for plant growth and there is an increasing global demand for organic food products.

pH in Coffee

Explore the cost-effective and reliable smartphone-based pH determination of coffee samples using MQuant® pH test strips and the MQuant® StripScan App.

Ultrasensitive Silicate Determination in Water

Rapid and sensitive test for silicate-induced scale deposits ensures industrial plant efficiency and sustainability.

Sucrose in Soft Drinks

Reflectometric determination of sucrose in soft drinks using Reflectoquant® test strips and reflectometer for in-process control.

Testing Food for Fipronil Contamination

Test your food for fipronil contamination using our analytical standards, certified reference materials, solvents, and columns for analysis.

HS-SPME-GC/MS Analysis of Terpenes in Hops & Cannabis

SPME offers efficient sample preparation for analyzing terpene/terpenoid profiles in plant essential oils using automation.

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 Soils

Photometric determination of nitrite ions in soil samples by Griess method 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.

Determination of Nitrate in Manure

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

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.

Determination of Phosphate in fertilizers

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

Determination of Ammonium in Organic Fertilizer

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

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