This study was undertaken to evaluate the efficiency of a liquid-solids separation process and microwave pretreatment, as well as anaerobic biodegradability of microwave pretreated dairy manure. Liquid-solids separation of raw dairy manure resulted in solid and liquid fractions having different properties, with the solid fractions richer in total and volatile solids content and liquid fractions...

Deposition of titanium dioxide (TiO(2)) on activated carbon (AC) surface has been widely utilized for the production of TiO(2)/AC photocatalyst, which can be used in photo-degradation of pollutants. In this work, a fast and simple digestion procedure has been developed for the spectrophotometric quantitative analysis of TiO(2) in TiO(2)/AC photocatalyst. Microwave-assisted digestion was used in...

In this paper the evaluation of the dry, wet and microwave digestion methods applied on certified bovine liver (CRM 12-02-01) has been performed. The microwave digestion method was selected and validated for the copper, manganese and zinc determination in liver samples by FAAS, because it is simple, rapid (digestion was done in 2.5 hours, with reduced chemical use) and reliable. Furthermore, mi...

A method to quick detect concentration of lecithin in eggs, namely microwave digestion spectrophotometry, was established in this research. The homogenate of eggs was treated with absolute ethanol to eliminate phosphate protein in eggs which could possibly affect concentration of lecithin examined. A sample then received a new way of pre-treatment, called microwave digestion, before UV-Vis ...

The utility of microwave oven for simple and rapid acid digestion of zoological and botanical materials was investigated by using a double Teflon vessel with a polypropylene jacket. The microwave-assisted digestion of samples with the HNO3-HCI-HCIO4-HF mixture in the bomb offers the advantage of taking much shorter process for sample preparation. The digestion was completed within 15 min even u...

The purpose of the study was to compare two methods for destruction of biological material for selenium (Se) analysis: wet digestion by conductive heating in programmed digestion block and digestion in microwave oven. In both methods samples were prepared in a closed system using nitric acid. Selenium was analysed by electrothermal atomic absorption spectrometry. The results have shown that bot...

An online nonenzymatic digestion method utilizing a microwave-heated flow cell and mild acid hydrolysis at aspartic acid (D) for rapid protein identification is described. This methodology, here termed microwave D-cleavage, was tested with proteins ranging in size from 5 kDa (insulin) to 67 kDa (bovine serum albumin) and a bacterial cell lysate ( Escherichia coli). A microwave flow cell consist...