An accurate analytical method for the determination of benzoic acid in curry paste using isotope dilution gas chromatography-mass spectrometry (GC-MS)

Mak, Chun-yin; Wong, Yee-Lok; Mok, Chuen-shing; Choi, Sik-man

doi:10.1039/c2ay25517k

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…The regulation sets a maximum limit of 1.0 g/kg for benzoic acid content in dairy products [2]. Various techniques are currently available for detecting benzoic acid, including high-performance liquid chromatography (HPLC) [3], gas chromatography-mass spectrometry (GC/MS) [4], and the fluorescent probe method [5]. While these methods provide excellent precision and a broad linear detection range, they necessitate skilled handling, incur substantial detection expenses, entail lengthy detection periods, involve complicated sample preparation, and mandate costly equipment [6].…”

Section: Introductionmentioning

confidence: 99%

Detection of Benzoic Acid Additive Based on a Terahertz Metasurface Sensor

et al. 2023

Photonics

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Benzoic acid and its derivative benzoate are widely utilized as food preservatives. This paper presents a highly sensitive method for detecting benzoic acid using a cross-shaped aluminum resonator integrated on top of a polyimide substrate. The resonance dip for benzoic acid was designed to be at 0.93 THz. The terahertz (THz) transmission spectrum was simulated using a designed structure with varying thicknesses of benzoic acid. Analysis of the spectral response of the THz resonance dips to the thickness of the benzoic acid layer shows that the amplitude of the resonance dips generally increases with an increase in the benzoic acid concentration. The spectral frequency shifts and transmission intensities both demonstrate high sensitivity of the metasurface sensor to trace benzoic acid thicknesses. The sensor exhibits a sensitivity of approximately 0.247 THz/RIU (Refractive Index Unit) and FOM (figure of merit) of 3.927/RIU. The THz metasurface sensor is a fast and accurate sensing tool that can detect trace substances, making it crucial in the field of food safety.

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Section: Introductionmentioning

confidence: 99%

Detection of Benzoic Acid Additive Based on a Terahertz Metasurface Sensor

et al. 2023

Photonics

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“…The reported methods involved the use of HPLC, [3][4][5][6] liquid chromatography-tandem mass spectrometry (LC/ MS/MS), 7,8 capillary zone electrophoresis, 9 GC-MS, 10 HPTLC, 11,12 stripping voltammetry 13 and UV derivative spectrophotometry. 12 On the other hand, quantication of BA and/or BHA in pharmaceutical preparations or food products was carried out using various techniques such as HPLC-UV detection, 14 HPLC-DAD, 15 HPLC-chemiluminescence detection, 16 ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), 17 UPLC-DAD, 18 capillary electrophoresis-amperometric detection, 19 capillary electrophoresis-electrospray ionization mass spectrometry, 20 micellar electrokinetic capillary chromatography, 21 TLC-densitometric detection, 22 gas chromatography-ame ionization detection (GC-FID), 23,24 GC-MS 25,26 and voltammetry. 27,28 The simultaneous determination of EN and TA was described in a couple of articles.…”

Section: Introductionmentioning

confidence: 99%

A validated stability-indicating HPLC-DAD method for simultaneous determination of econazole nitrate, triamcinolone acetonide, benzoic acid and butylated hydroxyanisole in cream dosage form

et al. 2016

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“…Due to their wide application and easy availability in food manufacturing, many methods have been developed for their determination. Chromatographic methods such as LC-MS/ MS, 2-9 GC-MS [10][11][12] and LC [13][14][15] are the most popular methods, while Nuclear Magnetic Resonance, 16 uorescence polarization immunoassay, 17 multicomponent spectrophotometric monitoring, 18 electrochemical sensor, 19 capillary electrophoresis, 20 potentiometric sensor 21 and chemometric methods 22 Y. G. Zhao, et al used tetraethylenepentamine-functionalized Fe 3 O 4 magnetic polymer (TEPA-MP) as an absorbent for cleaning up nine food additives. 28 B. Delgado provided a new extraction method based on cationic surfactants.…”

Section: Introductionmentioning

confidence: 99%