搜索结果: 1-12 共查到“化学 AAS”相关记录12条 . 查询时间(0.093 秒)
黔南民族师范学院仪器分析课件第八章 原子吸收 AAS分光光度计。
黔南民族师范学院仪器分析课件第八章 原子吸收 AAS定量分析。
黔南民族师范学院仪器分析课件第八章 原子吸收 AAS基本原理。
A Novel Hydrophobic Task Specific Ionic Liquid for the Extraction of Cd(II) from Water and Food Samples as Applied to AAS Determination
A Novel Hydrophobic Task Specific Ionic Liquid the Extraction of Cd(II) Water Food Samples AAS
2010/9/20
Hydrophobic task specific ionic liquid (TSIL) functionalized 2-mercaptobenzothiazole (MBT) was synthesized and characterized by NMR and HRMS. The capability of TSIL-MBT for the selective separation a...
AAS法测定出口氟石粉中锰的研究
氟石 原子吸收分光光度法 锰
2009/11/2
基于出口矿产品氟石粉需要测定锰而建立该方法。该方法是将氟石样品经过氢氟酸去除硅，高氯酸冒烟，冷却后再用盐酸、硼酸加热溶解等处理过程, 标准溶液中需加入与样品相匹配的钙基体进行测定。锰的线性范围为0.09～2.5 μg· mL-1, 测量下限为0.001%。用不同含量水平的实际样品所测定的结果与用ISO高碘酸钠光度法测定的结果一致。该方法的特点是准确可靠、简便可行、易于推广。
应用ICP-MS、AFS、GF-AAS测定食品中As、Cd、Hg、Pb方法的对比研究
电感耦合等离子体质谱(ICP-MS) 原子荧光(AFS) 石墨炉-原子吸收(GF-AAS) 食品 As Cd Hg Pb 方法对比
2009/10/20
应用ICP-MS法测定食品中的As、Cd、Hg、Pb，AFS法测定As、Hg，GFAAS法测定Cd、Pb，并对3种测定方法进行对比研究。采用微波消解法作为ICPMS法的样品前处理方法，湿式消解法作为AFS、GF-AAS法的前处理方法。通过优化消解条件，优化ICP-MS、AFS及GFAAS仪器测定工作条件，选择适宜内标元素、EPA200.8标准干扰校正方程、硫脲-抗坏血酸掩蔽剂、硝酸镁-硝酸钯...
Determination of Some Trace Metals in Environmental Samples by Flame AAS Following Solid Phase Extraction with Amberlite XAD-2000 Resin after Complexing with 8-Hydroxyquinoline
water and vegetable sample trace metal preconcentration amberlite XAD-2000 FAAS 8-hydroxyquinoline
2007/12/19
摘要 A procedure for preconcentration of Mn(II), Fe(II), Co(II), Cu(II), Cd(II), Zn(II), Pb(II) and Ni(II) based on retention of their complexes with 8-hydroxyquinoline (HQ) on Amberlite XAD-2000 resin ...
一种用于HPLC-AAS在线检测的接口设计
2007/12/14
本文研究了一种用于HPLC-AAS在线检测的接口设计。考察了接口和流量补充剂等对色谱峰扩宽的影响。方法用于二茂铁衍生物及汽油中烷基铅的分离测定
Determination of Calcium, Magnesium and Aluminium in Magmatic Rocks after Ultrasonic Leaching by Flame AAS
Ultrasonic metal leaching partial leaching magmatic rocks flame-AAS
2010/4/22
A method of ultrasonic leaching has been developed for the destructive analysis of magmatic rock samples1. This method was applied to determine three new elements, Ca, Mg and Al, in magmatic rock samp...
研究了以KBH4为还原剂的流动注射-冷蒸汽发生原子吸收光谱法,测定烟草中痕量汞.就其分析条件对灵敏度影响进行了优化研究.本方法共存离子干扰小,精密度较高(平行测定10ng/mL的标准样品7次的相对标准偏差为2.80%)、检测限好(0.4ng/mL),线性范围在0.4～60ng/mL之间.利用HNO3-H2O2体系微波消解进行了样品前处理,有较高的样品回收率(98.15%).测定结果令人满意.
Determination of Manganese and Iron in Magmatic Rocks After Ultrasonic Leaching by flame AAS
Ultrasonic metal leaching partial leaching magmatic rocks AAS
2010/4/22
Determination of Manganese and Iron in Magmatic Rocks After Ultrasonic Leaching by flame AAS.
HPLC/Hydride Generation AAS Coupling for the Speciation of Sb(III) and Sb(V) in Wastewaters
HPLC/Hydride Generation AAS Coupling the Speciation of Sb(III) Sb(V) in Wastewaters
2010/6/27
A comparative study was made with two HPLC columns of different lengths (PRP-X 100, 250 mm \( \times \) 4.1 mm id and PRP-X 100, 100 mm \( \times \) 4.1 mm id) coupled to HGAAS for the speciation of i...