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Triterpene and saponin in Radix ilicis pubescentis were identificated by HPLC-MS. The samlpe was extracted with methanol, and analyzed by HPLC-IT-MS and HPLC-TOF-MS to obtain the positive-ion and nega...
碰撞/反应池ICP-MS性能及应用进展
碰撞/反应池 ICP-MS 性能 应用
2010/3/30
对碰撞/反应池ICP-MS的性能及应用进展进行了综述。碰撞/反应池是目前四极杆ICP-MS首推的,最有效的消除多原子干扰的技术，近年来已经在痕量超痕量多元素分析、形态分析和同位素比值分析中得到很好的应用。预期在今后将继续发挥作用，并扩大其应用范围。
The liquid product derived from coliquefaction of Shendong coal and sawdust was separated into several groups by employing open-column technique. And the heteroatom-contained compounds were isolated a...
GC/MS analytical technology was adopted to determine the liquid products derived from coliquefaction of Shenhua coal and sawdust in this contribution. The coliquefied oil was analyzed qualitatively an...
酸枣仁化学成分的LC/MS分析
LC/MS Spinosa Ziziphphus Jujuba
2010/3/30
Study on Chemical Constituents of ammonia saturated with n-butanol from Spinosa Ziziphphus Jujuba by LC/MS, spinosin and 6’’’-feruloylspinosin was identified.with information of mass spectrometry frag...
微波萃取-GC/MS法测定电子电气产品中的灭蚁灵
electrical and electronic products mirex microwave extraction GC/MS
2010/3/30
A method for the determination of mirex in electrical and electronic products was established by microwave extraction technique and GC/MS. The sample was extracted by microwave with mixed extractant c...
The essential oils from Saussurea tridactyla were extracted by steam distillation. The chemical components of the essential oils were analyzed by GC/MS, and 23 compounds were identified, which account...
血液中曲马多的HPLC-MS/MS检验方法研究
tramadol HPLC-MS/MS blood
2010/3/30
The method for extraction and determination of tramadol was established by HPLC-MS/MS. Calibration curves are linear on injection of amounts range of 50-1 000 μg•L－1. The limit of detection is 1...
油松叶与尖叶松叶挥发性化学成分的GC/MS分析
油松叶 尖叶松叶 挥发油 气相色谱-质谱法
2010/3/30
采用水蒸汽蒸溜法分别提取油松叶与尖叶松叶挥发性化学成分,气相色谱法分离, 质谱法鉴定结构。分别从油松叶和尖叶松叶挥发油中分离并确定出37种和34种化学成分,鉴定出的挥发性化学成分分别占挥发油总量的98.67% 和98.54%。用峰面积归一化法通过化学工作站数据处理系统，得出各化学成分在挥发油中的相对百分含量。
鱼塘水中氟虫腈及其代谢物残留的GC/MS检测方法
fipronil metabolite fishpond water
2010/3/30
A residual determination method for fipronil and 3 metabolites in the fishpond water were established using GC/MS. The water sample was extracted by dichloromethane and clean-up by SPE, then determine...
The essential oils from flowers of Rosa chinensis were obtained from Sichuan, Anhui and Shanxi provinces, which were extracted by steam distillation method. The chemical components of the essential oi...
载体辅助液液萃取(SLE)-GC/MS法快速测定酒饮料中氨基甲酸乙酯
supported
2010/3/30
A method for simple and rapid determination of ethyl carbamate in alcoholic beverages was developed by GC/MS coupling with modified supported liquid-liquid extraction. Dehydrated with sodium chloride-...
ICP-MS测定电吸附找矿泡塑样品中微量元素
电感耦合等离子质谱法 电吸附找矿 泡塑样品
2009/10/30
建立了电感耦合等离子质谱法(ICP-MS)测定电吸附找矿泡塑样品中钒、铬、锰、钴、镍、铜、锌、镓、铌、钼、银、镉、金、铊、铅和铋等16种微量元素的方法。进行了灰化法-王水提取、硝酸-过氧化氢消解-王水提取和沸水浴王水提取试样的比较实验，以硝酸-过氧化氢-王水提取法为最佳样品分解方法。对仪器工作参数进行了优化, 选取103Rh和185Re作为测定元素的内标元素, 进行了测定同位素的选择及干扰的消除等...
ICP-MS测定木薯生产副产物的矿质元素和有害重金属元素
木薯生产副产物 ICP-MS 矿质元素
2009/10/30
木薯是我国广泛种植的热带作物，其块根富含淀粉，近年来常被用来生产燃料乙醇，是热门的生物质能源作物。木薯生产的同时产生了茎叶皮等大量副产物，长期以来被看成是废弃物，得不到充分的利用。木薯生产副产物含有很多营养成分，可以开发成高附加值的食品。采用ICP-MS技术对木薯生产副产物的矿质元素和有害重金属元素进行了研究，表明其含有丰富的人体必需矿质元素，大量元素的含量从高到低是K>Ca>P>μg>S>Mn>...
ICP-MS测定食用菌中硒的方法研究
硒 电感耦合等离子质谱(ICP-MS) 食用菌
2009/10/30
采用石英高压消化罐在较低温度下缓慢消化食用菌样品，减少了硒的损失，以ICP-MS测定食用菌中微量硒，并对分析方法进行了研究。实验表明样品浓度、积分时间与响应值呈正相关。当样品中硒的浓度大于50 μg·L-1时，采用0.1 s的积分时间;硒的浓度小于5 μg·L-1时，采用高于2.0 s的积分时间。标准曲线在1.0～500 μg·L-1完成(r=1.000 0)。回收率为99.96%～102.7%。...