Application of a Flow-Batch Extraction System for On-Line Determination of Minerals in Animal Foods by Inductively Coupled Plasma Optical Emission Spectrometry

作者：Marques Thiago L.^*; Nobrega Joaquim A.

来源：Food Analytical Methods, 2018, 11(4): 1243-1249.

DOI：10.1007/s12161-017-1112-y

• Flow-batch system
• Extraction
• Animal tissues
• On-line determination
• Multi-element analysis
• ICP OES

Determination of minerals is important for quality control of animal foods and sample preparation is a critical step to obtain fast, accurate, and reliable results. Extraction using dilute acid solutions is an interesting alternative due to its simplicity, softness, and safety. However, most extraction procedures are performed in batch mode, which generally is more time consuming, laborious, and susceptible to errors than those made either in flow or in flow-batch mode. We evaluated here a flow-batch extraction system for on-line determination of minerals in dried animal foods by inductively coupled plasma optical emission spectrometry (ICP OES). The designed flow-batch extraction system allowed fast, simple, and reliable on-line determination of minerals in dried animal foods by ICP OES. Moreover, it is inexpensive and simple to build, which makes its application feasible in routine analysis. The optimized extraction condition was performed using 50 mg of dried animal tissue sample, 10 mL of 4% V V-1 HCl, and 4 min of extraction time. The accuracy of the flow-batch extraction procedure was demonstrated using certified reference materials of bovine liver.

• 出版日期2018-4