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顶空-气相色谱-离子迁移谱法直接鉴定人工栽培和野生中药材(半枫荷)中的挥发性化合物 被引量:5
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作者 葛永辉 汪玲 +2 位作者 许粟 姜天丽 王金华 《Journal of Chinese Pharmaceutical Sciences》 CAS CSCD 2023年第5期392-405,共14页
半枫荷是一种传统的中药材,其野生资源现已遭到严重破坏,濒临灭绝。为了更好地保护和利用半枫荷资源,人工栽培应运而生。本研究采用顶空-气相色谱-离子迁移谱法(HS-GC-IMS)结合主成分分析(PCA)对人工栽培和野生半枫荷中的挥发性有机化合... 半枫荷是一种传统的中药材,其野生资源现已遭到严重破坏,濒临灭绝。为了更好地保护和利用半枫荷资源,人工栽培应运而生。本研究采用顶空-气相色谱-离子迁移谱法(HS-GC-IMS)结合主成分分析(PCA)对人工栽培和野生半枫荷中的挥发性有机化合物(VOCs)的变化进行分析。通过比较人工与野生品种半枫荷之间的差异来确定人工栽培半枫荷的药用价值。结果表明,半枫荷人工栽培和野生品种的VOCs组成相同,用于调节其药效的皮和茎中的挥发性有机化合物没有显着差异。该研究为人工栽培半枫荷的应用和野生品种的替代提供了科学理论。 展开更多
关键词 半枫荷 中药 指纹 挥发性有机化合物 顶空-气相色谱-离子迁移谱法
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Dietary exposure assessment of perchlorate and chlorate in infant formulas marketed in Shanghai,China 被引量:2
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作者 Shenghao Yu yonghui ge +4 位作者 Lujing Zhang Yiqi Li Wen Zhang Chang Liu Shaojie Peng 《Science in One Health》 2024年第1期118-125,共8页
Perchlorate and chlorate are ubiquitous pollutants that can adversely affect the thyroid function in humans.This study assessed the potential health risks associated with the dietary exposure of infants and young chil... Perchlorate and chlorate are ubiquitous pollutants that can adversely affect the thyroid function in humans.This study assessed the potential health risks associated with the dietary exposure of infants and young children to perchlorate and chlorate present in infant formulas available in Shanghai.The assessment was based on risk monitoring data from 150 samples of infant formulas in Shanghai between 2020 and 2022,along with the dietary consumption data of infants and young children.The detection rates of perchlorate and chlorate in infant formulas were 46.0%and 98.7%,with mean contents of 9.98μg/kg and 112.01μg/kg,and the maximum values of 151.00μg/kg and 1475.00μg/kg,respectively.The mean and 95th percentile(P95)values of daily perchlorate exposure of 0-36-month-old infant and young children via infant formulas were 0.07 and 0.17μg/kg body weight(bw)per day,respectively,which were lower than the tolerable daily intake(TDI)of perchlorate(0.3μg/kg bw per day).The mean and P95 values of chlorate exposure via infant formulas in 0-36-month-old infants and young children were 0.83 and 1.89μg/kg bw per day,which were lower than the TDI of chlorate(3μg/kg bw per day).The P95 exposure of different age groups(0-6 months,7-12 months and 13-36 months)of infants and young children to perchlorate and chlorate in infant formulas was below the TDI.Therefore,the risk associated with the exposure of 0-36-month-old infants and young children to perchlorate and chlorate from infant formulas in Shanghai is considered acceptable.Prioritizing environmental pollution control efforts to reduce the levels of perchlorate and chlorate in food products is important to safeguard the health of the infants and children under the One Health concept. 展开更多
关键词 Infant formulas PERCHLORATE CHLORATE Risk monitoring Exposure assessment
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