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Microwave-assisted oxidative digestion

Matusiewicz, H. Critical evaluation of the effectiveness of nitric acid oxidizing systems pressurized microwave-assisted digestion procedures. Chem. Anal. (Warsaw) 46, 897-905 (2001)... [Pg.121]

The high significance of microwave-assisted digestion and its wide application warrants some comments on the characteristics of the different acids usually employed in the process and also of hydrogen peroxide, not an acid itself but widely used for digestions on account of its oxidizing power. [Pg.209]

Supp. Cond. Oxidation of N and P using 22% (v/v) hydrogen per oxide and closed-vessel microwave assisted digestion in two stages % recoveries above 94.7% for phosphate 29 m 3 < o 3 3 3... [Pg.282]

Dichromate oxidation Spectrophotometry 2.0-100 mg - Microwave-assisted digestion... [Pg.1290]

Dichromate oxidation via microwave-assisted digestion FAAS 25-5000 mg Retention of the excess of dichromate on an anionic exchange column prior atomic absorption detection... [Pg.1290]

Mercury Soil Tin(ll) chloride in a hydrochloric acid medium CV-AAS 1.0-20 pgr Microwave assisted digestion or wet-oxidant digestion for total mercury determination... [Pg.1303]

In order to avoid laborious and time-consuming procedures for converting the phosphoms to measurable phosphate ions some improved methods have been reported that may be effective for online monitoring, e.g. thermal induced digestion, ultraviolet photooxidation [110], and microwave-assisted digestion [81,97,105]. Whatever the choice, it is important to ensure that quantitative oxidation of relatively refractory organic phosphoms compounds, i.e. condensed phosphates, and further hydrolysis and release of P from polyphosphates occurs prior to the detection step. [Pg.204]

Experiments involving digestion assisted by microwaves and US demand extreme safety measures and caution. In fact, the heating effect of microwaves and the use of strong acids and oxidants such as HNO3 or H2O2 can be highly hazardous in inexperienced hands. Only approved equipment and scientifically sound procedures should be used. [Pg.89]

See other pages where Microwave-assisted oxidative digestion is mentioned: [Pg.404]    [Pg.404]    [Pg.317]    [Pg.317]    [Pg.334]    [Pg.1051]    [Pg.19]    [Pg.1292]    [Pg.166]    [Pg.376]    [Pg.125]    [Pg.243]    [Pg.244]    [Pg.100]    [Pg.244]    [Pg.99]    [Pg.100]    [Pg.100]    [Pg.101]    [Pg.85]    [Pg.87]    [Pg.209]    [Pg.142]    [Pg.270]    [Pg.28]    [Pg.226]    [Pg.142]    [Pg.1294]    [Pg.2012]    [Pg.262]    [Pg.91]    [Pg.238]    [Pg.130]    [Pg.115]    [Pg.238]    [Pg.572]    [Pg.647]    [Pg.197]   
See also in sourсe #XX -- [ Pg.404 ]



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Microwave-assisted digestion

Microwaves oxidations

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