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Photometry and reflectometry

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facet applications:Photometry and reflectometry
facet content type:Protocol
Analytical Method: Nitrite in potato instant powder
Photometric determination using the Griess method subsequent to extraction
Analytical Method for Determination of the Solution Color of Raw Sugars, Brown Sugars and Colored Syrups at pH 7.0 (According to ICUMSA Method GS1/3-7)
Method: Spectrophotometric Color Determination at 420 nm Zero adjustment For each measurement series, a zero adjustment is required. It is recommended to use the same cell for zero adjustment and for sample measurement. The zeroing procedure for the measurement series is automatically prompted by
Analytical Method: Zinc in soils
Photometric determination with pyridylazoresorcinol (PAR) subsequent to acid extraction
Analyze Iron (Total) in Plant Material
Photometric determination subsequent to acid mineralisation
Analytical Method: Lead in Waste Water with High Concentrations of Calcium
Photometric determination with PAR subsequent to separation of lead with Sodium diethyldithiocarbaminate
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: Copper (total) in effluents, high organic content
Photometric determination with Cuprizon subsequent to acid mineralisation
Analytical Method: Aluminium (total) in lime stone
Photometric determination with Chromazurole S subsequent to fusion melting
Analytical Method: Analytical Quality Assurance, Standard for Total Chlorine
Preparation of a standard solution for total chlorine
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.
Calcium in Beer
Photometric determination with phthalein derivative
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.
Analytical Method: Nickel (total) in effluents (Photometry, DIN decomposition)
Photometric determination with Dimethylglyoxime subsequent to acid mineralisation; DIN decomposition
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: Iodine in table salt
Analytical Method: Iodine in table salt
Analytical Method: Selenium in Water
Method: Photometric determination with 3,3'-Diaminobenzidine
Analytical Method: Sulfate in Building Materials
Photometric or turbidimetric determination subsequent to water extraction/fusion melting
Ultrasensitive Determination of Silicate in Process and Boiler Water Using Rapid Photometric Tests
Efficiency of industrial plants and equipment constitutes one of the basic preconditions for sustainable economic operations. One avoidable problem is posed by the undesirable build-up of deposits, i.e., scale – in pipes, boilers, and turbines, whose principal cause is silicate.
Analytical Method: Analytical Quality Assurance, Standard for Free Chlorine (dichloroisocyanuric acid)
AQA Standard for free chlorine - Preparation of a standard solution for free chlorine
Analytical Method: Aluminium (total) in effluents
Photometric determination with Chromazurole S subsequent to acid mineralisation; DIN decomposition
Sucrose (Saccharose) in Soft Drinks
A step-by-step description of the reflectometric determination of sucrose (saccharose) in soft drinks using Reflectoquant® test strips and reflectometer, ideal for in-process control and on-site testing.
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 Free Chlorine (DIN)
Preparation of a standard solution for free Chlorine according to DIN EN ISO 7393
Analytical Method: Analytical Quality Assurance, Standard for Sulfide
Preparation of a standard solution for Sulfide
Analytical Method: Analytical Quality Assurance, Standard for Sulfite
Preparation of a standard solution for Sulfite
Analytical Method: Aluminium (total) in effluents, high organic content
Photometric determination with Chromazurole S subsequent to acid mineralisation
Analytical Method: Potassium in soils
Turbidimetric determination subsequent to extraction with CAL buffer analogous LUFA
Analytical Method: COD Measurement in Waste Water (Rapid-Digestion Method)
Analytical Method COD measurement in wastewater - Photometric determination of chromate consumption subsequent to digestion in 20 min.
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