| 摘要 |
PCT No. PCT/JP92/00278 Sec. 371 Date Sep. 23, 1993 Sec. 102(e) Date Sep. 23, 1993 PCT Filed Mar. 9, 1992 PCT Pub. No. WO92/16650 PCT Pub. Date Oct. 1, 1992The present invention relates to a reagent for measurement of magnesium ions utilizing a complex of magnesium ion with adenosine 5'-triphosphate as a substrate of glucokinase derived from bacteria of the genus Zymomonas. By using this reagent, enough measuring range to measure a magnesium ion in various samples such as biological fluids, foodstuffs, etc. can be accomplished and, at the same time, the measurement can be made with high precision and reliability even in a sample containing a magnesium ion in low concentration. Further, the reagent of the present invention is superior in operation property by reducing a dilution operation, and has sufficient performance for a routine method for determination of magnesium ions.
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