Results 1 to 10 of about 22 (17)
Discriminant Analysis of Volatile Components of Different Quality Grades of Edible Alcohol Based on GC×GC/TOF MS(基于GC×GC/TOF MS对不同等级食用酒精挥发性成分的判别分析) [PDF]
Shipin kexue jishu xuebao, 2022 The content of volatile components in edible alcohol is extremely low. However, these low volatile components directly affect the taste and grading of edible alcohol.
LI Lianghao(李良好) +6 more
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Review on Exposure Level of Nonylphenol in Food and Related Biological Toxicity Profile(壬基酚在食品中的污染现状及其生物毒性概述) [PDF]
Shipin kexue jishu xuebao, 2014 Nonylphenol (NP) is an endocrine disrupter, and the exposure of NP in foodstuff has attracted extensive attentions in the global. In this paper, the properties and applications of NP, exposure level in foodstuff, main sources, and toxic action to ...
XIE Ming-yong(谢明勇) +2 more
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Comparative Analysis of Key Odorants in Chaoshan Beef Balls Before and After Boiling(潮汕牛肉丸煮制前后关键性香气成分对比分析) [PDF]
Shipin kexue jishu xuebao, 2018 The volatile aroma-active compounds of raw and boiled Chaoshan beef balls were extracted by SPME, and then analyzed by GC-O-MS. The key odorants in raw and cooked beef balls were confirmed by their OAVs.
SHI Huazhi(石华治) +7 more
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Volatile Compounds Analysis in Chicken Thigh Smoked with Different Materials by GC-IMS Fingerprint(不同材料熏制鸡腿肉挥发性物质GC-IMS指纹图谱分析) [PDF]
Shipin kexue jishu xuebao, 2019 In order to elucidate the influence of different smoking materials on the flavor characteristics of smoked meat products, gas chromatography-ion mobility spectroscopy (GC-IMS) was used to detect the flavor compounds of chicken thigh smoked with white ...
YAO Wensheng(姚文生) +6 more
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Zhongguo youzhi, 2022 利用烘箱法加速氧化试验分析研究浓香菜籽油和精炼菜籽油氧化稳定性及挥发性成分变化的差异。结果显示：基于过氧化值达到国标限量（≤5 mmol/kg）的精炼菜籽油、浓香菜籽油的预测货架期分别为64 d和80 d，浓香菜籽油的氧化稳定性明显优于精炼菜籽油；利用同时蒸馏萃取结合气相色谱-质谱联用法（SDE-GC-MS）对两种菜籽油中挥发性成分进行检测分析发现，在初始浓香菜籽油和精炼菜籽油中分别检出10类84种和6类51种挥发性成分，总量分别为11 110.78 μg/kg和3 831.28 μg/kg ...
刘玉兰1,2，孙国昊1，王小磊2，马宇翔1，张慧3，焦山海3 LIU Yulan1,2, SUN Guohao1, WANG Xiaolei2, MA Yuxiang1, ZHANG Hui3， JIAO Shanhai3
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Gongye shui chuli, 2022 采用弱电强化厌氧生物反应系统对废水中的壬基酚（NP）进行降解，研究系统对NP的降解特性、系统降解NP的产电特性以及NP降解产物的生物毒性。实验结果表明：弱电介导可明显促进NP在厌氧生物体系中的降解，当NP初始质量浓度为30 mg/L时，NP与体系中TOC在6 d内的降解率分别可达61.23%和54.02%，且NP的降解符合一级反应动力学模型；体系具有良好的产电性能，最大输出电压和功率密度分别可达0.72 V和487.37 mW/m2；NP生物降解过程中涉及到的主要产物包括3，4 ...
王翠翠 +3 more
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基于MMI技术对印染废水中NP降解关键功能菌群的识别、构建与评估
Gongye shui chuli, 2023 磁性纳米粒子介导分离（MMI）技术无需对底物进行标记即可从复杂微生物系统中分离具有活性的功能微生物菌株/菌群，是筛选获取特定功能微生物并丰富完善微生物种质资源的有力工具。针对印染废水特征污染物壬基酚（NP）的污染问题，基于MMI技术进行功能微生物驯化富集与筛选识别，构建了NP关键降解功能菌群，并评估了其对实际印染废水中NP的去除效能。结果表明，驯化污泥中假单胞菌属（Pseudomonas）、水形杆菌属（Undibacterium）、贪铜菌属（Cupriavidus ...
杨庆 +6 more
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Zhejiang Daxue xuebao. Lixue ban, 2010 建立了纺织助剂中壬基酚的提取与含量测定方法.样品通过固相萃取、衍生化后,利用气相色谱/质谱-选择离子定量分析方法,对各类助剂中的壬基酚(NP)进行了定量检测.针对不同类型助剂,通过实验对前处理方法进行了优化.各类助剂的加标回收率在90%以上,相对偏差小于4%,方法的最低检出限为0.2 mg • L-1.该方法适用于水性,油性,乳液型等绝大部分纺织助剂,具有广泛性和实用性.
YANLong(严龙) +2 more
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Gongye shui chuli, 2018 研究了水溶液中壬基酚的光催化氧化降解特性。结果表明，UV-TiO2光催化氧化可以有效降解水溶液中的壬基酚。采用15 W低压汞灯，当TiO2投加量为0.8 g/L，曝气速率为5.0 mL/min，光照距离为80 mm，壬基酚初始质量浓度为1.0 mg/L，pH=7.2时，壬基酚降解率可达90%以上；该降解过程较好地符合一级反应动力学模型。降解过程中，溶液TOC降解率小于壬基酚降解率，说明壬基酚的光催化降解会产生复杂中间产物。
贾陈忠 +3 more
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Gongye shui chuli, 2010 应用自制微萃取瓶,采用异辛烷作萃取剂,液-液微萃取方法富集水中壬基酚,反相高效液相色谱法测定。考察了不同萃取剂、盐析效应和pH对萃取效果的影响。壬基酚在水中的加标回收率为91.77%,方法检出限为0.525μg/L,相对标准偏差为1.82%。该萃取方法可有效富集水中痕量壬基酚。
周建科, 彭静, 龙堃
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