Open AccessA simple design for microwave assisted digestion vessel with low reagent consumption suitable for food and environmental samples
Author(s) -
Mehrdad Gholami,
Shima Behkami,
Sharifuddin M. Zain,
Sezgin Bakırdere
Publication year - 2016
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/srep37186
Subject(s) - reagent , microwave , cartridge , materials science , power consumption , pulp and paper industry , microwave oven , process engineering , biomedical engineering , environmental science , computer science , chemistry , medicine , telecommunications , power (physics) , organic chemistry , engineering , physics , quantum mechanics , metallurgy
The objective of this work is to prepare a cost-effective, low reagent consumption and high performance polytetrafluoroethylene (PTFE) vessel that is capable to work in domestic microwave for digesting food and environmental samples. The designed vessel has a relatively thicker wall compared to that of commercial vessels. In this design, eight vessels are placed in an acrylonitrile butadiene styrene (ABS) holder to keep them safe and stable. This vessel needs only 2.0 mL of HNO 3 and 1.0 mL H 2 O 2 to digest 100 mg of biological sample. The performance of this design is then evaluated with an ICP-MS instrument in the analysis of the several NIST standard reference material of milk 1849a, rice flour 1568b, spinach leave 1570a and Peach Leaves 1547 in a domestic microwave oven with inverter technology. Outstanding agreement to (SRM) values are observed by using the suggested power to time microwave program, which simulates the reflux action occurring in this closed vessel. Taking into account the high cost of commercial microwave vessels and the volume of chemicals needed for various experiments (8–10 mL), this simple vessel is cost effective and suitable for digesting food and environmental samples.