A Rapid Determination of Free Formaldehyde Content in Marine Products

Xuan Zhang, Guangxin Yang, Cong Kong, Xiaosheng Shen, Youqiong Cai, Dongmei Huang

2018

Abstract

Objective for rapid detecting free formaldehyde (FA) in marine products, a method with high sensitivity and little interference is described. Background value of FA in marine products would supplement the scientific evaluation index system. Free FA is derivatised with 2,4-dinitrophenylhydrazine (DNPH) to form a chromophore for high-performance liquid chromatography (HPLC) detection. The formation of the DNPH FA derivative is shortened to 30 min. It shows good linear correlation between the peak areas and FA concentrations with a dynamic linear range of 0.3-25.0 mg/L, the limit of detection (LOD) is 0.2 mg/Land the limit of quantitation (LOQ) is 0.5 mg/L. The recovery range of free FA in spiked squid was 70%-78% with relative standard deviation (RSD) of 5%-10% (n=5). FA content is detected in 14 species of seafood comparing to the past analysis method, results show no significant difference, FA content of tuna, tuna, cod, Surf Calm and cuttlefish is more than 40 mg/kg. The average of FA content in 28 species of packaging squid products is 14.7 mg/kg, ranging from 2.10-61.8 mg/kg. This method is simpler and easier to operate; it reduces the concentration of derivatives, shortens the reaction time, and is applicable to the determination of formaldehyde content in all kinds of seafood.

Paper Citation

in Harvard Style

Zhang X., Yang G., Kong C., Shen X., Cai Y. and Huang D. (2018). A Rapid Determination of Free Formaldehyde Content in Marine Products.In The Second International Conference on Materials Chemistry and Environmental Protection - MEEP, ISBN 978-989-758-360-5, pages 47-50. DOI: 10.5220/0008185200470050

in Bibtex Style

@conference{meep18,
author={Xuan Zhang and Guangxin Yang and Cong Kong and Xiaosheng Shen and Youqiong Cai and Dongmei Huang},
title={A Rapid Determination of Free Formaldehyde Content in Marine Products},
booktitle={The Second International Conference on Materials Chemistry and Environmental Protection - MEEP,},
year={2018},
pages={47-50},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008185200470050},
isbn={978-989-758-360-5},
}

in EndNote Style

TY - CONF

JO - The Second International Conference on Materials Chemistry and Environmental Protection - MEEP,
TI - A Rapid Determination of Free Formaldehyde Content in Marine Products
SN - 978-989-758-360-5
AU - Zhang X.
AU - Yang G.
AU - Kong C.
AU - Shen X.
AU - Cai Y.
AU - Huang D.
PY - 2018
SP - 47
EP - 50
DO - 10.5220/0008185200470050