Chemistry: analytical and immunological testing – Metal or metal containing – Li – na – k – rb – cs – fr – be – mg – ca – sr – ba – ra
Reexamination Certificate
2005-06-30
2009-06-09
Warden, Jill (Department: 1797)
Chemistry: analytical and immunological testing
Metal or metal containing
Li, na, k, rb, cs, fr, be, mg, ca, sr, ba, ra
C436S166000
Reexamination Certificate
active
07544516
ABSTRACT:
A method for determination of calcium in a sample derived from a living body, by the reaction of calcium in the sample with Chlorophosphonazo-III or a compound analogous thereto in the presence of vanadate ions, followed by determination of calcium in the sample on the basis of an optical change caused by the reaction product, is excellent in various respects as follows: it is free from the problem of absorption of carbonic acid gas caused by a high pH; it is free from the problem of use of a toxic reagent containing arsenic; it makes it possible to subject a large number of samples to determination in a short time because it can be applied to an autoanalyzer; and it permits determination in a wide range because of low sample blank values.
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Medda et al. “The Vanadate Complex of teh Calcium-Transport ATPase of teh Sarcoplasmic reticulum, its Formation and Dissolution” European Journal of Biochemistry 1983, 137, 7-14.
Qureshi, “The Spectrophotometric Determination of Calcium (II) in Steel Making Alloys”. Pakistan Journal of Science (1979), 31(3-6), 212-14.
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Lizhong et al. “Studies on the Chromogenic Reaction of Mixed Surfactant System Vanadium (IV)-Chlorophosphonazo III-CTAB-Emulsifier OP and Its Application”. Journal of Zhejiang of Technology, 1, 1991, p. 54-59.
Medda et al. “The vanadate complex of the calcium-transport ATPase of the sarcoplasmic reticulum, its formation and dissociation”. European Journal of Biochemistry, 1983, 137(1-2), 7-14.
Katayama Katsuhiro
Kojima Ryo
Noda Kenta
Kratz Quintos & Hanson, LLP
Mirabeau Monique
Nitto Boseki Co. Ltd.
Warden Jill
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