Reference

Voltammetric determination of nickel in urine and blood by chelate adsorption

Voltammetric determination of nickel in urine and blood by chelate adsorption. Gammelgaard, Bente; Andersen, Jan Rud; Poulsen, Asmus (Dep. Chem., R. Dan. Sch. Pharm., Copenhagen DK-2100, Den.). Trace Elem. Anal. Chem. Med. Biol., Proc. Int. Workshop, 3rd, 521-7. Edited by: Braetter, Peter; Schramel, Peter. de Gruyter: Berlin, Fed. Rep. Ger. (English) 1984. CODEN: 53MVA5. DOCUMENT TYPE: Conference CA Section: 4 (Toxicology) Methods are described for pretreatment of blood and urine samples for Ni detn. by Hg drop electrode. Samples from a Ni-sensitive patient treated with Antabuse [97-77-8] were analyzed. Dimethylglyoxime [95-45-4] was used to form a neutral chelate with the Ni for voltammetric detn. This method is sensitive and reliable.

Decreasing the nickel content in wastewater

Decreasing the nickel content in wastewater. Vuong Dinh Cuong (Texaco Inc. , USA). U.S. US 4500324 A 19 Feb 1985, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: ICM: C02F001-54. NCL: 048197000R. APPLICATION: US 83-507866 27 Jun 1983. DOCUMENT TYPE: Patent CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 51 Ni concns. in dil. wastewaters from the prodn. of synthesis gas by partial oxidn. are decreased to ￡1 mg/L using a pptn. process consisting of mixing the wastewater at 60-220°F with 10-1000 mg/L of HCHO [50-00-0], an ionizable polysulfide salt, or H2O2, and the addn. of 2-10 mol dimethylglyoxime [95-45-4] per g-atom of dissolved Ni. The pH of the mixt. is adjusted to 7-11. The water-insol. Ni-dimethylglyoxime complex is removed by conventional liq.-solid sepn. Thus, Ni concns. in wastewater samples were decreased from 1.32 to ￡0.5 mg/L by the addn. of HCHO or Na2S and 10 mg/L of di-Me glyoxime. The ppt. was removed by filtration.