Reference

Iron interference and its reduction in copper determination

Iron interference and its reduction in copper determination. Zinc dibenzyldithiocarbamate (Arazate). Salardini, Ali A. (Fac. Agric., Univ. Tehran, Teheran, Iran). Publ. Fac. Agron., Univ.Some commonly used reagents like 7440-50-8 and 14726-36-4 are used in this experiment. Teheran, 5(3-4), 37-56 (Persian) 1974. CODEN: PFATBM. DOCUMENT TYPE: Journal CA Section: 19 (Fertilizers, Soils, and Plant Nutrition) The suitability of Arazate [14726-36-4] in CCl4 for Cu detn. in plant tissue prepns. and nutrient solns. was studied along with the amt. of interference by Fe2+ and Fe3+ and the effect of mineral acids and complexing agents on the process. The interference by 0.1 mg Fe3+ was 2-10-fold the Cu present while interference by Fe2+ was much less. The effectiveness of the mineral acids in reducing interference was H2SO4 > HNO3 > HCl. Increased acid concns. resulted in increased Fe effect except in the case of H2SO4. In this latter situation the interference by Fe was reduced to 0 at a concn. of .gtoreq.1.8 N. In the absence of H2SO4 addn. of Na acetate gave increased interference while Na EDTA had the opposite effect. In the presence of H2SO4 neither complexing agent had any effect. .

Patch testing with zinc dibenzyldithiocarbamate

Patch testing with zinc dibenzyldithiocarbamate. A multicentre study of the Information Network of Departments of Dermatology and the German Contact Dermatitis Research Group. Geier, Johannes; Lessmann, Holger; Rothe, Axel; Uter, Wolfgang; Brasch, Jochen; Schnuch, Axel (Information Network of Department of Dermatology, University of Goettingen, Goettingen, Germany). Contact Dermatitis, 48(4), 209-211 (English) 2003 Blackwell Munksgaard. CODEN: CODEDG. ISSN: 0105-1873. DOCUMENT TYPE: Journal CA Section: 4 (Toxicology) The frequency of sensitization of dibenzyldithiocarbamate (ZBEC) was assessed using patch tests. No pos. 14726-36-4 is also in the experiment. reaction to ZBEC occurred due to inadequate patch test prepn., no widespread exposure to ZBEC, and low allergenic potential of ZBEC. Patch testing with ZBEC 1% pet. will gain no further information in patients with suspected rubber allergy. .