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啤酒中的钙
用酞衍生物进行光度法测定
Determination of Calcium in Beer
Using the Spectroquant® photometric system, we outline a photometric analysis of calcium levels in beer.
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: Sulfite in Shrimps
Method: Photometric determination with 2,2'-dinitro-5,5'-dithiodibenzoic acid (Ellman's reagent)
分析方法：虾中的亚硫酸盐
方法：使用2,2'-二硝基-5,5'-二硫代二苯甲酸 (埃尔曼试剂)的光度测定
Ammonium in Effluents
Step-by-step method describing the photometric determination of ammonium ions in effluents using Spectroquant® test kits and spectrophotometer.
Analytical Method: Copper (total) in effluents, high organic content
Photometric determination with Cuprizon subsequent to acid mineralisation
Analytical Method: Lead (total) in effluents
Photometric determination with PAR subsequent to acid mineralisation; DIN decomposition
Analytical Method: Nickel (total) in effluents (Photometry, DIN decomposition)
Photometric determination with Dimethylglyoxime subsequent to acid mineralisation; DIN decomposition
河流中的铵
分步操作说明：使用Spectroquant®测试试剂盒和分光光度计通过光度法测定河流中的铵离子。
分析方法：废水中的铜（总量），高有机质含量
酸矿化后使用 Cuprizon 进行光度测定
分析方法：土壤中的钾
用CAL缓冲液类似于LUFA提取后的浊度测定
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.
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.
Analytical Method: Zinc in soils
Photometric determination with pyridylazoresorcinol (PAR) subsequent to acid extraction
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: Zinc (total) in effluents, high organic content
Photometric determination subsequent to acid mineralisation with sulfuric acid and Perhydrol
饮用水、游泳池水、废水和消毒液中的溴
分光光度法用二丙基对苯二胺（DPD）测定饮用水、游泳池水、废水和消毒液中0.020 – 10.00 mg/L范围内的溴。
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: Copper (total) in feedstuffs
Photometric determination with Cuprizon subsequent to acid mineralisation
分析方法：饲料中的铜（总量）
酸矿化后使用 Cuprizon 进行光度测定
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.
Cobalt in Wastewater From the Production and Casting of Non-ferrous Metals
Cobalt in wastewater from the production and casting of non-ferrous metals
分析方法：废水中COD的测量（快速消化法）
分析方法 废水中COD的测定 - 消化20分钟后铬酸盐消耗量的光度测定。
Color Determination of Sugar Based on ICUMSA Color GS2-10
ICUMSA® Method GS2-10 to measure the color of sample solutions of white sugar with a color index up to 50 IU.
Color Determination of sugar based on ICUMSA Color GS2-9
Learn about the ICUMSA® Method GS2-9 (2024) to measure the color of sample solutions of white sugar or highly pure sugar syrup of color index up to 600 IU.
Determination of Phosphorus Total in Meat and Meat Products
Colorimetric total phosphorus analysis method for meat and meat products as per German Food and Feed Code §64 LFGB 06.00-9.
Color Determination of Sugar based on ICUMSA Color GS1-7
Learn about the ICUMSA® method GS1-7 to measure the color of sample solutions of raw sugar, brown sugar, or sugar syrups.
Estimation of Proline in Fruit and Vegetable Juices
Spectrophotometric determination of proline by the Ninhydrin method, per EN 1141 and German Food and Feed Code §64 LFBG 31.00-7.
Determination of the deterioration of Bleachability Index (DOBI) of Raw Palm Oil acc. to DIN EN ISO 17932:2011
Method: UV/VIS spectrophotometry; Method No. 2524
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