Tag Archives: Experiment

Determination of Ethanol in Alcoholic Beverages Using Photopette

The food & beverage industry must make many tests and take certain measurements to ensure that their products meet high standards and are safe for consumption. The Photopette can be used for photometric measurements of liquid samples. The objective of this application note is to demonstrate how Photopette Cell can be used to quantify the […]

E. coli Cell Count at OD600

E.coli cell counting at OD600 is demonstrated using the Photopette® handheld spectrophotometer [1, 2]. Almost no training is requited. The method is easy and fast performed at the bioreactor or in the cell culture hood. E. coli can be directly measured at 600 nm in the cell culture flask. The method can be performed at […]

FAST PANTOPRAZOLE MEASUREMENT IN PILLS

Here we demonstrate a method to measure the pantoprazolecontent in tablets within 10 minutes. There are no reagentsnecessary. By using the Photopette® handheldspectrophotometer [1, 2] only minimal training is requited.The method is easy and fast performed in two steps 1)Calibration and 2) Measurement. The method can beperformed at any location and does not require a […]

DETERMINATION OF LACTATE CONCENTRATION USING PHOTOPETTE CELL

During anaerobic glycolysis, energy is produced. In this process, lactate dehydrogenase (LDH) catalyses the oxidation of lactate to pyruvate and an equimolar amount of nicotinamide adenine dinucleotide (NAD+) is reduced to its reduced form NADH. The amount of NADH produced is directly proportional to the lactate concentration in the sample [1]. The produced NADH is […]

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