Photometry and reflectometry

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facet applications:Photometry and reflectometry

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Showing 1-30 of 49 results

Reflectometric determination of nitrate in wastewater using Griess reagent and Reflectoquant® test strips.

Learn how to accurately measure the pH of milk and dairy products using MQuant® pH test strips and the StripScan app for quality control.

Analytical Method: Analytical Quality Assurance, Standard for COD/Chloride

Preparation of a standard solution for COD/chloride

Ammonium in Wastewater

Step-by-step accurate reflectometric determination of ammonium in wastewater with Nessler’s reagent or Indophenol blue using Reflectroquant®system and test strips.

K268 Olive Oil Commission Regulation (EEC) No 2568/91 Annex IX

Learn about the UV-spectrometric determination of the K268 nm value of olive oil, assessing the UV absorbance at 268 nm, to ensure quality and compliance with regulatory standards.

K270 Olive Oil Commission Regulation (EEC) No 2568/91 Annex IX

Discover the K270 method for analyzing olive oil quality as per EEC Regulation 2568/91. Access detailed protocols and ensure compliance with standards.

Nitrate Levels in Vegetables

Reflectometric nitrate determination in vegetables using Griess reagent and Reflectoquant® system.

Cell Density measurement by OD600 Method

Optical density measurement of bacterial cells at 600 nm using pre-programmed method in Spectroquant® Prove spectrophotometers.

Identification of Cell Culture Media with Raman Spectroscopy

Identification of cell culture media samples by traditional LC methods, such as amino acid or vitamin analysis, has high costs, and requires significant analytical expertise and laboratory space.

Enzymatic Method for Determining Branched Chain Amino Acids (BCAA Assay)

Assay protocol for the colorimetric detection of Branched Chain Amino Acids (BCAA) in biological samples using the alanine assay kit.

Total Nitrogen Measurement Solution

Total Nitrogen Analysis kit offers a fast, accurate, and cost-effective method for water and wastewater testing.

Analytical Method: Urea in Water and Wastewater, Enzymatic Determination

Urea in water and wastewater, enzymatic determination - Photometric determination using the indophenol blue method after cleavage of the urea

Amônio em águas residuais

Determinação reflectométrica precisa e passo a passo de amônio em águas residuais com reagente de Nessler ou azul de indofenol usando o sistema Reflectroquant® e tiras de teste.

Uma alternativa mais fácil, rápida e econômica para medir o nitrogênio total

Esse kit de teste de nitrogênio (total) é mais rápido, seguro, preciso e custa menos do que o método tradicional. O kit de teste de nitrogênio (total) foi desenvolvido para fornecer aos analistas um único método de teste para determinar

Método analítico: Ureia em água e águas residuais, determinação enzimática

Ureia em água e águas residuais, determinação enzimática - Determinação fotométrica usando o método do azul de indofenol após a separação da ureia

Testing Drinking Water - An Overview of National & International Regulations

An overview of USEPA, EU regulations, and various testing methods to ensure drinking water safety.

Total Polyphenol Content in Apples and Bananas

A complete workflow for estimating the total polyphenol content of apple and banana samples, with gallic acid standard addition curve protocol.

Transmittance to Absorbance Table

Transmittance to absorbance table for fast conversion. Use this chart as a handy reference in the lab, classroom or field. The online transmittance chart is available to download and share.

Safe Drinking Water Act & Clean Water Act

The Safe Drinking Water Act regulates finished drinking water, raw water sources, and distribution to ensure water safety.

Sensitive Determination of Iron in Drinking Water, Mineral Water, Groundwater, and Spring Water Using Rapid Photometric Tests

Spectroquant® Iron Test - a suitable alternative to ICP or AAS for determination of iron in drinking water, mineral water, groundwater, and spring water.

Phosphate Determination in Water

Spectroquant® photometric test accurately quantifies low concentrations of PO4-P in natural waters.

Calculating Your Working Tolerance: A Guideline

Guideline to calculate your working tolerance - Certified Standard Solutions (CRM)

Measuring Chemical Oxygen Demand in Water Treatment Facilities

We are a global leader in the life science industry and have produced test kits to measure numerous analytes. Water Online spoke with us about advances in measuring chemical oxygen demand.

Determination of Sialic Acid in Milk

Discover the detection of milk adulteration by whey using spectrophotometric estimation of sialic acid in three different milk brands. Learn more about this essential technique in our application note.

Navigating Disinfection Control in Food and Beverage Manufacturing

Learn about disinfection control and how to select the right disinfectant among the various options available in its methods and instrumentation based on photometry and reflectometry.

pH in Fruit Juices

An easy-to-use, economical, and smartphone-based reliable determination of pH in fruit juices using the MQuant® pH test strips and the MQuant® StripScan app.

pH in Soft Drinks

An easy-to-use and economical approach for reliable determination of pH of soft drinks with MQuant® pH test strips and MQuant® StripScan App.

Determinação fotométrica de nitrato em efluentes

Um procedimento passo a passo para a determinação fotométrica de nitrato em efluentes usando os kits de teste Spectroquant® e o fotômetro para uma análise precisa e quantitativa.

Tabela de transmissão para absorção

Tabela de transmissão para absorção para conversão rápida. Use essa tabela como uma referência útil no laboratório, na sala de aula ou no campo. O gráfico de transmissão on-line está disponível para download e compartilhamento.

Analytical Quality Assurance: Peracetic Acid Standard

Application Note details preparation of peracetic acid standard solution for analytical quality assurance (AQA) in testing laboratories.

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