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1975•Journal of the Science of Food and AgricultureRequires access

Spectrophotometric estimation of benzoic and sorbic acids

Hendrik Zonneveld

Open publisher page 6 citations

Abstract

Abstract A spectrophotometric method is described for estimations of benzoic and sorbic acids in materials with background absorption in the ultraviolet region. The estimation can be done when both preservatives are present in equal or nonequal ratios. The coefficients of variation (average standard deviation) are 0.23–1.98% for benzoic acid and 0.40–1.58% for sorbic acid. The recovery factors are 95.5–103% for benzoic acid and 81.5–89% for sorbic acid.

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Abstract A spectrophotometric method is described for estimations of benzoic and sorbic acids in materials with background absorption in the ultraviolet region. The estimation can be done when both preservatives are present in equal or nonequal ratios. The coefficients of variation (average standard deviation) are 0.23–1.98% for benzoic acid and 0.40–1.58% for sorbic acid. The recovery factors are 95.5–103% for benzoic acid and 81.5–89% for sorbic acid.

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Available abstract

Abstract A spectrophotometric method is described for estimations of benzoic and sorbic acids in materials with background absorption in the ultraviolet region. The estimation can be done when both preservatives are present in equal or nonequal ratios. The coefficients of variation (average standard deviation) are 0.23–1.98% for benzoic acid and 0.40–1.58% for sorbic acid. The recovery factors are 95.5–103% for benzoic acid and 81.5–89% for sorbic acid.

Key concepts: Sorbic acid, Benzoic acid, Preservative, Chemistry, Relative standard deviation, Chromatography, Organic chemistry, Detection limit

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