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Determination of Formaldehyde in Maple Sirup: Variation of the Blank by Underwood, J C is a Chemistry article available to read on EtoBox.
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## Abstract The amount of formaldehyde in 23 samples of commercial maple sirup from various parts of the maple-producing areas of the United States ranged from 0.36 to 1.85 ppm with an average of 0.75 ppm. These sirups were made from sap of maple trees not treated with a paraformaldehyde germicidal pellet. This “blank” was lower than the 0.95 value used in the official method for HCHO (31.184-31.189), but the few high values would present a problem for maple sirup producers who must keep residual HCHO in maple sirup below 2 ppm. The distillate of sirup which isolates the formaldehyde yielded 3 carbonyl compound peaks by GLC, one of which corresponded to HCHO. Work is being done to determine if the others may be interfering compounds.
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- Author
- Underwood, J C
- Publisher
- Association of Official Analytical Chemists; The Journal of AOAC International; AOAC International; Oxford University Press (OUP) (ISSN 1060-3271)
- Published
- 1971
- Language
- EN
- Field
- Chemistry (Physical Sciences)