Analytical Results of Moisture and Ash Determination with prepASH
29 Nov 2021
Precisa has published its latest Application Note demonstrating automatic moisture and ash determination results achieved by the prepASH analyser.
The VDLUFA (Association of German Agricultural Analytic and Research Institutes e. V.) regularly carries out feed surveys which serve as a quality assurance for the checking and documentation of analytical standards. The VDLUFA is open to non members and provides an opportunity for public interlaboratory testing. Precisa Gravimetrics GmbH, a branch of Precisa Gravimetrics AG in Germany, was able to use the facility to demonstrate automatic moisture and ash determination results achieved by the prepASH analyser.
The application note details that, as part of the VDLUFA Feed Inquiry 433 Q (2016), three samples were provided for examination: two compound feeds, one dairy cattle feed, one mineral feed. For each sample, four raw ash results were required calculated on 100% dry matter. In this context, the humidity was determined only for the calculation and not for the overall assessment.
Samples were analysed with the fully automatic prepASH drying and ashing system. The evaluation carried out by the State Operating Society for Environment and Agriculture (BfUL), confirmed both the high accuracy and precision of the prepASH measurements. All measurements conformed to required standards.