000 02254nam  2200349za 4500
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003CaOODSP
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008170809s1967    onc     ob   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aM34-20/93E-PDF|zM34-20/93
1001 |aDonaldson, Elsie M.
24510|aDetermination of cobalt and zinc in nickel metal by atomic-absorption spectrophotometry after separation by simultaneous chloroform extraction of their thiocyanate-diantiprylmethane complexes |h[electronic resource] / |cElsie M. Donaldson and Vera H.E. Rolko, Mineral Sciences Division.
260 |aOttawa : |bQueen's Printer, |c1967.
300 |aiv, 14 p.
4901 |aTechnical bulletin ; |vTB 93
500 |aCover title.
500 |a"August 1967."
500 |aIncludes errata.
500 |aDigitized edition from print [produced by Natural Resources Canada].
504 |aIncludes bibliographical references.
5203 |a“An atomic-absorption spectrophotometric method for determining cobalt and zinc in the range 0.0005 to 0.10% in nickel metal is described. After sample dissolution, cobalt and zinc are separated from the matrix element by simultaneous chloroform extraction of their thiocyanate-diantipyrylmethane ion-association complexes from a citric acid medium at pH 3.25. Interference from copper and various elements (i.e. titanium, vanadium, molybdenum, tungsten, etc.) is eliminated with thiourea and ammonium fluoride, respectively. Cadmium, iron and chromium also interfere under the chosen experimental conditions, but the amounts of these impurities present in nickel metal are so low that their interference effects are negligible. Other impurities do not interfere in the proposed method"--Abstract, p. i.
546 |aIncludes abstract in French.
69207|2gccst|aMetals
7001 |aRolko, Vera H. E.
7101 |aCanada. |bNatural Resources Canada.
7101 |aCanada. |bMines Branch.
830#0|aTechnical bulletin (Canada. Dept. of Energy, Mines and Resources. Mines Branch)|vTB 93|w(CaOODSP)9.834857
85640|qPDF|s1.90 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M34-20/M34-20-93-eng.pdf