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New Method for the Determination of DL-Histidine by FIA and Chemiluminometric Detection | ||
| Baghdad Science Journal | ||
| Article 1, Volume 7, Issue 2, 2010, Pages 927-938 | ||
| Authors | ||
| Nagam S. Turkey; Issam M.A. Shakir | ||
| Abstract | ||
| This paper present a simple and sensitive method for the determination of DL-Histidine using FIA-Chemiluminometric measurement resulted from oxidation of luminol molecule by hydrogen peroxide in alkaline medium in the presence of DL-Histidine. Using 70l. sample linear plot with a coefficient of determination 95.79% for (5-60) mmol.L-1 while for a quadratic relation C.O.D = 96.44% for (5-80) mmol.L-1 and found that guadratic plot in more representative. Limit of detection was 31.93 g DL-Histidine (S/N = 3), repeatability of measurement was less that 5% (n=6). Positive and negative ion interferances was removed by using minicolume containing ion exchange resin located after injection valve position. | ||
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