当前位置: X-MOL 学术Food Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
BBCEAS-HLPC measurements for synthetic antioxidants (TBHQ, BHA, and BHT) in deep-UV region below 300 nm
Food Chemistry ( IF 8.5 ) Pub Date : 2024-11-19 , DOI: 10.1016/j.foodchem.2024.142150
Naser Bazina, Tariq Ahmed, Mostafa Almdaaf, Jibin He, Mosh Sarker, Meez Islam

This study investigates the integration of Broadband Cavity Enhanced Absorption Spectroscopy (BBCEAS) with High-Performance Liquid Chromatography (HPLC) to detect synthetic antioxidants; BHA, BHT, and TBHQ in the deep-UV region below 300 nm. The research addresses the need for more sensitive and cost-effective detection methods in HPLC systems, particularly for low analyte concentrations, by exploring BBCEAS as a superior alternative to conventional detectors that often fall short in sensitivity. The sensitivity of the HPLC-BBCEAS system is assessed by calculating the minimum detectable change in the absorption coefficient (αmin) and comparing with those obtained using conventional HPLC and single-wavelength HPLC-CRDS methods. The findings demonstrate that the HPLC-BBCEAS system achieves αmin values of 1.8 × 10−5 cm−1 for BHA, 2.8 × 10−5 cm−1 for BHT, and 1.9 × 10−5 cm−1 for TBHQ at 280 nm, with Limits of Detection (LOD) and Quantification (LOQ) up to 30 times lower than conventional HPLC systems.

中文翻译:


在 300 nm 以下的深紫外区域对合成抗氧化剂(TBHQ、BHA 和 BHT)的 BBCEAS-HLPC 测量



本研究调查了宽带腔增强吸收光谱 (BBCEAS) 与高效液相色谱 (HPLC) 的集成以检测合成抗氧化剂;BHA、BHT 和 TBHQ 在 300 nm 以下的深紫外区域。该研究通过探索 BBCEAS 作为通常灵敏度不足的传统检测器的卓越替代品,解决了 HPLC 系统中对更灵敏、更具成本效益的检测方法的需求,特别是对于低分析物浓度。通过计算吸收系数 (αmin) 的最小可检测变化并与使用常规 HPLC 和单波长 HPLC-CRDS 方法获得的灵敏度进行比较来评估 HPLC-BBCEAS 系统的灵敏度。研究结果表明,HPLC-BBCEAS 系统在 280 nm 处实现了 BHA 的 1.8 × 10-5 cm-1、BHT 的 2.8 × 10-5 cm-1 和 TBHQ 的 1.9 × 10-5 cm-1 的 αmin 值,检测限 (LOD) 和定量 (LOQ) 比传统 HPLC 系统低 30 倍。
更新日期:2024-11-20
down
wechat
bug