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Method for Quantitation of Total Vitamin B 12 in Foods Using a Highly Fluorescent Vitamin B 12 Derivative

โœ Scribed by Watanabe, Fumio; Abe, Katsuo; Takenaka, Shigeo; Fujita, Tomoyuki; Nakano, Yoshihisa

Book ID
124164396
Publisher
American Chemical Society
Year
1997
Tongue
English
Weight
134 KB
Volume
45
Category
Article
ISSN
0021-8561

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## Abstract Incorporation of the lipophilic Co(III)โ€cobyrinate octadecylโ€cobester **1** and of its ionic aquaโ€cyano perchlorate derivative **2** into poly(vinyl chloride)/bis(1โ€butylpentyl) adipate liquid membranes induces a selectivity, measured potentiometrically, of about 10^3^ for SCN^โˆ’^ an NO