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Photometry and reflectometry

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facet applications:Photometry and reflectometry
facet content type:Protocol
Analytical Method: Zinc (total) in effluents, high organic content
Photometric determination subsequent to acid mineralisation with sulfuric acid and Perhydrol
Analytical Method: Sulfite in Shrimps
Method: Photometric determination with 2,2'-dinitro-5,5'-dithiodibenzoic acid (Ellman's reagent)
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: Aluminium (total) in effluents, high organic content
Photometric determination with Chromazurole S subsequent to acid mineralisation
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 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
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.
Calcium in Beer
Photometric determination with phthalein derivative
Ammonium in Effluents
Step-by-step method describing the photometric determination of ammonium ions in effluents using Spectroquant® test kits and spectrophotometer.
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.
Analytical Method for Selenium in Water
Quantify selenium in water using this photometric test and a clear, filtered sample to measure the results at 445 nm.
Analytical Method: Nickel (total) in effluents (Photometry, DIN decomposition)
Photometric determination with Dimethylglyoxime subsequent to acid mineralisation; DIN decomposition
Analyze Iron (Total) in Plant Material
The iron test enables quantification of iron ions in various waters. Iron ions are reduced to iron(II) ions that react with a triazine derivative to form a red-violet complex that is measured photometrically.
Determination of Silver in Water and Wastewater: Photometric Determination Using Phenanthroline Method and Eosin Y
The article describes the sample preparation and photometric determination of silver concentration in water samples using Spectroquant® photometers and test kits.
Analytical Method: Analytical Quality Assurance, Standard for Total Chlorine
Preparation of a standard solution for total chlorine
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: 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.
Analytical Method: Aluminium (total) in effluents
Photometric determination with Chromazurole S subsequent to acid mineralisation; DIN decomposition
Analytical Method: Analytical Quality Assurance, Standard for Sulfite
Preparation of a standard solution for Sulfite
Analytical Method: Analytical Quality Assurance, Standard for Hydrogen peroxide
Preparation of a standard solution for Hydrogen peroxide
Analytical Method: Potassium in soils
Turbidimetric determination subsequent to extraction with CAL buffer analogous LUFA
Analytical Method: Copper (total) in feedstuffs
Photometric determination with Cuprizon subsequent to acid mineralisation
Analytical Method: Iodine in table salt
Analytical Method: Iodine in table salt
Analytical Method: Nitrite in potato instant powder
Photometric determination using the Griess method subsequent to extraction
Analytical Method: Lead (total) in effluents
Photometric determination with PAR 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
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