‘T1HI5 REPORT presents a procedure for the automated simultaneous determination of both calcium and phosphate, and its application to the analysis of a 0.6-mi. serum specimen. Calcium is determined by atomic absorption spectrophotometry, using a portion of the diluted and dialyzed serum sample (1). Phosphate is determined on the undialyzed residual serum by an improved automated spectrophotomet...

The present study was undertaken for assessing the level of heavy metals such as copper, nickel and zinc in water, water hyacinth and soil samples of Rupahi beel, Nagaon, Assam. Metals were detected using flame atomic absorption spectrophotometry. The results revealed that by and large all the three metals are present in all the samples. The average concentration of Cu, Ni and Zn in both water ...

Lead concentrations in whole blood have been determined for a random sampling of newborns (age 1-8 days) with the use of a microtechnique involving carbon rod atomization and atomic absorption spectrophotometry. The mean lead concentration of the newborns (13.8 ± 4.5 g/100 ml of whole blood) significantly differed from that of pediatric populations at low (22.6 ± 6.1) and high lead (32.1 ± 10.4...

203Pb was used to monitor sample-preparation techniques used in four atomic absorption methods for determination of lead in blood. Sources of error and their magnitude were identified and measured for each of the following analytical procedures: precipitation with trichloroacetic acid, separation with ammonium pyrrolidine dithiocarbonate into methyl isobutyl ketone, digestion with acids, and co...

To elucidate the socioeconomic factors influencing lead exposure in elementary school children by gender, 108 children (56 male, 52 female), aged 6-7 years, were randomly selected from 39 elementary state schools in Serpong, Banten, Indonesia. Their parents were interviewed to obtain information on sociodemographic characteristics. Their blood lead (BPb) levels were measured by atomic absorptio...

In this paper we present a method for determining the iron saturation of ferritin as a possible independent predictor of iron stores. Serum ferritin was purified by immunochemical precipitation, and could be completely recovered from serum without any contamination from transferrin. The iron content of the precipitated ferritin was determined by flameless atomic absorption spectrophotometry (FA...

The use of constructed wetlands for wastewater treatment has been proposed as an intermediate technological solution for handling wastewater. The aim of the study was to assess the efficiency of a constructed wetland at Egerton University, Kenya for heavy metals removal from wastewater. The wetland has been used for tertiary treatment of effluent from waste stabilization ponds system since 2007...

Alexander, F. W., and Delves, H. T. (1972). Archives of Disease in Childhood, 47, 446. Deaths from acute lead poisoning. The three fatal cases of acute lead poisoning described show the difficulty experienced in reaching an early diagnosis of lead intoxication. A rapid micromethod is now available for the determination of whole blood lead levels on small samples of blood, using atomic absorptio...

1. Vesterberg, 0., and Bergstrom, T., Determination of cadmium in blood by use of atomic absorption spectroscopy with crucibles-and a rational procedure for dry-ashing. Clin. Chem. 23, 555 (1977). 2. Bogden, J. D., and Joselow, M. M., A micro-method for the collection and analysis of trace metals by paper-in-a-cup atomic absorption spectrophotometry. Am. md. Hyg. Assoc. J. 35, 88 (1974). 3. Cer...

OBJECTIVE To evaluate a novel device for its efficacy in removing experimental biofilm from root surfaces and its potential for concomitantly removing/roughening the surface substance. METHODS AND MATERIALS A novel acrylic rotary device (biofilm remover, BR) was tested in vitro in three experiments: surface loss, surface roughness [positive controls: Perioset (PS) and Proxoshape (PR)] and bio...