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Determination of the limit of quantification of the calorimeter using a mixture of benzoic acid and silicon dioxide

Krstić Vesna R.
Blagojević Branko D.
Gomidželović Lidija D.
Požega Emina D.
Petrović Jelena V.
Stanković Suzana D.

In recent years quality control has received a great attention in laboratory work. Implementation of the international standard ISO/IEC 17025 is necessary for any laboratory that wishes to establish quality control in its work. One of the important factors for meeting the requirements of this standard is the usage of the certified reference materials (CRM) in laboratory work. In order to determine the performance of the calorimeter, benzoic acid as CRM, from AlliedSignal Riedelda Haen, Ref.: 33045 and SiO2, Pro analyze, in various mass ratios was used. The results showed that benzoic acid can be successfully utilized for the control of the entire technical and instrumental measuring range and resolve the problem of determination of the limit of detection and quantification of the calorimeter.

Keywords: CRM, Benzoic acid, Limit of detection, Limit of quantification, C5000 Calorimeter System