FLAME AAS DETERMINATION OF Fe IN SERUM WITH DISCRETE SAMPLING

JUWADEE SHIOWATANA

ABSTRACT: A direct rapid method for flame AAS determination of iron in serum using discrete sample nebulization is developed. Effect of sample size and uptake rate of nebulizer on peak signals is studied. Either peak height or peak area can be employed in the measurement. Sample size can be adjusted accordingly with uptake rate depending on required sensitivity and sample limitation. The result obtained from the proposed method is superior to the method using pretreatment of sample prior to AAS measurement in its speed, sensitivity and precision.

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Department of Chemistry, Faculty of Science Mahidol University Rama VI Road, Bangkok 10400, Thailand.

Received March 20, 1995