Hunan Branch of China Tobacco Industrial Corporation

Changsha, China

Hunan Branch of China Tobacco Industrial Corporation

Changsha, China
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Gong S.,Hunan Branch of China Tobacco Industrial Corporation | Liang Y.,Xiangtan University | Tang L.,Hunan Branch of China Tobacco Industrial Corporation | Huang P.,Hunan Branch of China Tobacco Industrial Corporation | Dai Y.,Hunan Branch of China Tobacco Industrial Corporation
Chinese Journal of Chromatography (Se Pu) | Year: 2017

A high performance liquid chromatography with fluorescence detection (HPLC-FLD) method was developed for the simultaneous determination of formaldehyde and acetaldehyde in packaging paper by dansylhydrazine (DNSH) derivatization. The samples were extracted by derivatization reagent for 30 min, and derived for 24 h. After purifying treatment with a PSA/C18 cartridge, a Diamonsil® C18 column (150 mm×4.6 mm, 5 μm) was used as stationary phase for separation, the mixtures of acetic acid aqueous solution (pH 2.55)-acetonitrile were used as mobile phases by gradient elution, and the excitation and emission wavelengths were 330 nm and 484 nm, respectively. The results showed that the recoveries of formaldehyde and acetaldehyde spiked in the samples were 81.64%-106.78%, and the relative standard deviations (RSDs) were 2.02%-5.53% (n=5). The limits of detection of formaldehyde and acetaldehyde were 19.2 μg/kg and 20.7 μg/kg, respectively. The limits of quantification of formaldehyde and acetaldehyde were 63.9 μg/kg and 69.1 μg/kg, respectively. The method is simple, sensitive and reproducible. It provides a basic approach for the determination of trace formaldehyde and acetaldehyde.


Gong S.,Hunan Branch of China Tobacco Industrial Corporation | Kong B.,Hunan Branch of China Tobacco Industrial Corporation | Tuo S.,Hunan Branch of China Tobacco Industrial Corporation | Dai Y.,Hunan Branch of China Tobacco Industrial Corporation | And 3 more authors.
Se pu = Chinese journal of chromatography / Zhongguo hua xue hui | Year: 2013

A method of gas chromatography-mass spectrometry (GC-MS) with liquid-liquid extraction has been developed for the simultaneous determination of 23 ester compounds including acetate esters, acrylic esters, metacrylic acid esters and phthalate acid esters in cigarette water-borne adhesives. After dispersed in water, the sample was extracted by n-hexane solution containing phenyl ethyl propionate as internal standard substance. Then, the solution was centrifuged and filtrated through a 0.45 microm organic membrane filter. Finally, the solution was separated on a DB-WAXETR column (60 m x 0.25 mm x 0.25 microm), and detected with MS in selected ion monitoring mode, and quantified by internal standard method. The results showed a good linear correlation in the range of 0.4-50.0 mg/L. The recoveries of the ester compounds spiked in the sample were 81.8%-109.1%, and the relative standard deviations (RSDs, n = 5) were less than 4%. The limits of detection (LODs) and limits of quantification (LOQs were in the ranges of 0.02-0.76 mg/kg and 0.04-2.52 mg/kg, respectively. The method is simple, time-saving, and has high sensitivity and good reproducibility. It can be applied to the determination of the 23 ester compounds in cigarette water-borne adhesives.

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