Sensitive Spectrophotometric Determinati
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Abbas Afkhami; Mostafa Rezaei
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Article
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1999
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Elsevier Science
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English
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A simple, sensitive, and selective method for rapid determination of ultratrace quantities of formaldehyde based on its inhibitory effect on the malachite green-sulfite reaction is described. The reaction is monitored spectrophotometrically by measuring the decrease in absorbance at 613 nm at a fixe