Zobrazeno 1 - 10
of 50
pro vyhledávání: '"J.O. Hibbits"'
Autor:
R.T. Williams, J.O. Hibbits
Publikováno v:
Analytica Chimica Acta. 26:363-370
A method is presented for the determination of molybdenum by extraction of its thiocyanate complex with methyl isobutyl ketone. The method is accurate to ±4% or 3 μg of molybdenum, whichever is greater. The only elements which cause interference ar
Publikováno v:
Talanta. 11:1509-1519
A method is described for the determination of trace amounts of zirconium and titanium. The two elements are separated from the sample matrix by precipitation with eupferron using iron as a carrier. Zirconium is determined after extraction with TOPO
Autor:
Silve Kallmann, J.O. Hibbits
Publikováno v:
Talanta. 10:181-188
A method is described for the determination of nickel in beryllium or beryllium oxide. Nickel is precipitated with benzotriazole using cadmium as a carrier. A further separation from other elements is made by passing a hydrochloric acid-isopropyl alc
Autor:
J.O. Hibbits, E. Allan. Schaefer
Publikováno v:
Analytical Chemistry. 38:1687-1691
Publikováno v:
Analytica Chimica Acta. 21:6-9
A study of the purity and uniformity of composition of commercially available ferrous ammonium sulfate hexahydrate has been undertaken to determine its suitability as a solid standard reductant. Weighed quantities of reagent-grade Mohr's salt were ad
Publikováno v:
Talanta. 4:104-107
A method is described for the determination of molybdenum by extraction of its thiocyanate complex with methyl isobutyl ketone. The method is accurate to ±4% or ±3 micrograms of molybdenum, whichever is greater. The accuracy and sensitivity can be
Publikováno v:
Analytica Chimica Acta. 44:21-28
When a uranium nuclear fuel material clad witli an Fe- 25 Cr- 4 Al- 1 Y alloy is tested in an oxidizing environment at elevated temperatures, uranium diffuses through the clad and deposits on the surface of the specimen. A method has been developed w
Autor:
J.O. Hibbits, Silve Kallmann
Publikováno v:
Talanta. 11:1443-1448
Some rather unusual chemical analyses are described. A typical example is the determination of a few μg of one element in a sample composed essentially of the elements listed in the periodic table. This somewhat bizarre sample is a solution containi
Publikováno v:
Analytica Chimica Acta. 21:135-140
A method capable of a precision of 3 to 5 parts in ten thousand has been developed for the routine assay of high purity chromium metal and chromium trioxide. Use has been made of the favourable gravimetric factor of ferrous ammonium sulfate and of an
Publikováno v:
Talanta. 5:250-253