Sediments as a tool for monitoring contamination by heavy metals in the environment has long been considered. It is therefore a necessity to produce reliable data for such purposes. Microwave-assisted acid dissolution has proved to be a suitable method for digesting complex matrices, such as sediments. However, due to the infancy of the technique, the procedures are numerous and varied in both ...

The purpose of the research was to study the effect of microwave power inpretreatment of fresh waterhyacinth on biogas production. The variations of microwave power levels are 240; 400; 560 and 800 W. The variations of microwave heating time are 5; 7 and 9 min. The unpretreated fresh water hyacinth are used as control. The result of research showed that the microwave pretreatment of fresh water...

Acid hydrolysis is a key process for the production of platform chemicals from biomass, however solid residues by-products can amount to 50 wt% starting biomass material. In this study, biofuel precursor levulinic acid were generated via microwave-assisted Miscanthus x Giganteus and investigated supplementation anaerobic reactors digesting Chicken Manure. The addition increased methane yields b...

A method based on microwave-induced combustion (MIC) was applied for medicinal plants digestion allowing further chlorine determination by potentiometry using ion-selective electrode (ISE). Sample masses ranging from 500 to 1000 mg were evaluated MIC digestion. Water and 10, 25, 50, 100 mmol/L NH4OH investigated as absorbing solutions. The accuracy of the proposed certified reference materials ...

An overview of the forms of phosphorus species likely to be encountered in natural waters and the implications for the measurement of ®lterable and total phosphorus is given. Procedures reported in the literature for the storage and digestion of water samples for ®lterable reactive phosphorus (FRP), total ®lterable phosphorus (TFP) and total phosphorus (TP) measurements are summarised and the a...

the traditional measurement methods of 3 kinds of aluminum species and the total aluminum content in polyaluminum solutions are al-ferron timed complex spectrophotometry and edta chelatometry respectively. but eachof these methods has different deficiencies. in this paper, microwave digesting technical had be coupled with the radiate ferron spectrophotometry to rapid mensurate the concentration...

Nowadays, microwave-assisted procedures using closed vessels with thermal, chemical, and mechanical resistance are the state-of-the-art for efficient digestion of samples. Safety issues related to sample reactivity should be considered analytical throughput is also a critical parameter. The choice specific vessel target application not trivial simple experiments presented here rice flour bovine...

The accurate measurement of the phosphate content of a liposomal suspension is important when working with differential scanning calorimetry. Standard phosphate tests date back several decades and require extended hands-on time. Here, we present a rapid version of a phosphate test taking advantage of microwave-assisted chemical digestion and multiwell plate reading technology allowing for the f...

The traditional measurement methods of 3 kinds of aluminum species and the total aluminum content in polyaluminum solutions are Al-Ferron timed complex spectrophotometry and EDTA chelatometry respectively. But eachof these methods has different deficiencies. In this paper, microwave digesting technical had be coupled with the radiate Ferron spectrophotometry to rapid mensurate the concentration...