Rapid Determination of Cyanide Ion in Industrial Wastes.

. - - Determination of Cyanide in Soils and Wastes by Ion Chromatography

tIt "i,\ 1he:;l:. ; .v This honors thesis is the result of a research project I have worked on since May 1993 and finished in April of 1994 under the direction of Dr. John R. Pichtel, as an undergraduate fellow. The purpose of the research was to develop a new analytical technique for cyanide determination in soils and wastes utilizing ion chromatography. Ion chromatography was evaluated for it...

Composting Agricultural and Industrial Wastes

Rapid Determination of Chromium (M)lli Natural Water and Industrial Effluents Using Kinetic Speetrophotometric Method

A new simple arid rapid catalytic kinetic method for determination of trace amounts of chromium (110 isdescribed. The method is based on the catalytic effect of chromium (III) on the reduction of Methylene blue byascorbic acid in acidic media. The reaction monitored smectrophotomenically by measuring the decrease ofabsorbance at 664 nm at 25 C. The fixed-time method was used for the first 300 s...

Rapid Determination of Lead in Urine by Ion Exchange.

For routine screening of employees in the lead industry, a method for determination of urinary lead was developed in which this element is removed from urine by means of a chelating agent, eluted, and determined by a modified dithizone method. The method gives values which are about 5% below those obtained by the wet ashing technic, with a precision of ± 2.1% in the range of 2-15 jig. of lead p...

Total cyanide mass measurement with micro-ion selective electrode for determination of specific activity of carbon-11 cyanide.

In this research, we aim to directly measure the specific activity (SA) of the carbon-11 cyanide ([(11)C]CN¯) produced by our in-house built automated [(11)C]HCN production system and to identify the major sources of (12)C-cyanide ((12)CN¯). The [(11)C]CN¯ is produced from [(11)C]CO2, which is generated by the (14)N(p,α)(11)C nuclear reaction using a cyclotron. Direct measurement of cyanide con...