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<i>In Situ</i>Analysis of Copper Alloys by Femtosecond Laser Ablation Inductively Coupled Plasma Mass Spectrometry: Constrains on Matrix Effects
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作者 Germán Velásquez Anastassia Y. Borisova +1 位作者 Sandrine Baron Luc Robbiola 《American Journal of Analytical Chemistry》 2018年第3期150-161,共12页
Direct analysis of copper-base alloys using laser ablation techniques is an increasingly common procedure in cultural heritage studies. However, main discussions remain focused on the possibility of using non-matrix m... Direct analysis of copper-base alloys using laser ablation techniques is an increasingly common procedure in cultural heritage studies. However, main discussions remain focused on the possibility of using non-matrix matched external reference materials. To evaluate the occurrence of matrix effects during in situ microanalysis of copper-base materials, using near infrared femtosecond laser ablation techniques (NIR fs-LA-ICP-MS), two bronzes, i.e., (Sn-Zn)-ternary and (Sn)-binary copper-matrix reference materials, as well as a reference synthetic glass (NIST-SRM-610) have been analyzed. The results have been compared to data obtained on a sulfide-matrix reference material. Similar values in relative sensitivity averages of 63Cu, 118Sn and 66Zn, as well as in 118Sn/63Cu and 66Zn/63Cu ratios were obtained, for all analyzed matrix types, i.e., copper-base-, silicate-, and sulfide-reference materials. Consequently, it is possible to determinate major and minor element concentrations in copper alloys, i.e., Cu, Sn and Zn, using silicate and sulfide reference materials as external calibrators, without any matrix effect and over a wide range of concentrations (from wt.% to ppm). Equally, Cu, Sn and Zn concentrations can be precisely determined in sulfides using homogeneous alloys (reference) materials as an external calibrator. Thus, it is possible to determine Cu, Sn and Zn in copper-base materials and their ore minerals, mostly sulfides, in a single analytical session, without requiring specific external calibrators for each matrix type. In contrast, immiscible elements in copper matrix, such as Pb and Fe show notable differences in their relative sensitivity values and ratios for different matrix-materials analyzed, implying that matrix-matched external calibrations remain to be applied for their trace quantification. 展开更多
关键词 Copper Alloys Reference Material Matrix Effect In-Situ Metal Determinations NEAR-INFRARED Femtosecond Laser Ablation-Inductively coupled plasma-mass spectrometry (NIR fs-LA-ICP-MS)
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ICP-MS法测定砷脂摄入对小鼠砷蓄积及矿物元素水平的影响
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作者 陈佳佳 钟映雄 +6 位作者 汪卓 李瑞 贾学静 陈建平 刘晓菲 宋兵兵 钟赛意 《中国渔业质量与标准》 2023年第4期45-52,共8页
砷脂在海洋生物中含量丰富,饮食途径是人们暴露砷脂的主要来源。为初步判断砷脂摄入对小鼠的影响,本研究利用电感耦合等离子体质谱(ICP-MS)法测定3种砷脂(AsHC 332、AsHC 346和AsHC 374)摄入对小鼠砷蓄积以及对小鼠肝肾组织中钾(K)、钠(... 砷脂在海洋生物中含量丰富,饮食途径是人们暴露砷脂的主要来源。为初步判断砷脂摄入对小鼠的影响,本研究利用电感耦合等离子体质谱(ICP-MS)法测定3种砷脂(AsHC 332、AsHC 346和AsHC 374)摄入对小鼠砷蓄积以及对小鼠肝肾组织中钾(K)、钠(Na)、钙(Ca)、镁(Mg)、铜(Cu)、锌(Zn)、铁(Fe)、钴(Co)、镍(Ni)、锰(Mn)、硒(Se)和铬(Cr)12种矿物元素水平变化情况。结果表明,3种砷脂摄入后均会在小鼠的心、肝、脾、肺和肾中出现砷蓄积,其中肾脏的砷蓄积作用最明显,肝脏次之。且3种砷脂摄入会显著改变肝脏中12种矿物元素水平变化和肾脏中7种矿物元素水平变化,尤其是Cu、Zn、Se等与抗氧化酶合成相关的元素的紊乱。本研究可初步判断3种砷脂的摄入会对小鼠的肝肾组织造成一定影响,可以为后续砷脂的毒理学相关内容提供实验基础,为海产品风险评估提供一定的数据支撑。 展开更多
关键词 电感耦合等离子体质谱法 砷脂 矿物元素 肾脏 肝脏
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ICP-AES法测定玉米中的微量元素含量 被引量:25
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作者 孙勇 张金平 +1 位作者 杨刚 李佐虎 《食品科学》 EI CAS CSCD 北大核心 2007年第2期236-237,共2页
采用高压硝化罐处理样品,以电感耦合等离子体发射光谱仪(ICP-AES)法测定了我国十个省区的玉米中Zn、Mg、Mn、Sr、Fe、Pb、Cu、Se八种微量元素的含量。此方法测定元素的相对标准偏差小于5.00%。方法简单、快速、准确度高,且多元素同时测... 采用高压硝化罐处理样品,以电感耦合等离子体发射光谱仪(ICP-AES)法测定了我国十个省区的玉米中Zn、Mg、Mn、Sr、Fe、Pb、Cu、Se八种微量元素的含量。此方法测定元素的相对标准偏差小于5.00%。方法简单、快速、准确度高,且多元素同时测定,环境污染小。 展开更多
关键词 ICP-AES 微量元素 玉米
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电感耦合等离子体磁质谱法测定无尘产品中痕量氯
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作者 聂玲清 纪红玲 《质谱学报》 EI CAS CSCD 2005年第z1期35-36,共2页
A method of analysis trace element chloride in cleaning products by Inductively Coupled Plasma-Mass Sepctrometry (ICPMS) was studied. It has good precision (RSD<5%). The LOD is 0.06 μg/L (n=7). The recovery is 93.... A method of analysis trace element chloride in cleaning products by Inductively Coupled Plasma-Mass Sepctrometry (ICPMS) was studied. It has good precision (RSD<5%). The LOD is 0.06 μg/L (n=7). The recovery is 93.7%-110.0%. 展开更多
关键词 inductively coupled plasma-mass spectrometry (ICPMS) cleaning product TRACE CHLORIDE
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用电感耦合等离子体质谱法测定中草药中的重金属元素 被引量:13
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作者 缪恩铭 张艳红 +3 位作者 王森 施红林 陈章玉 杨光宇 《分析测试学报》 CAS CSCD 北大核心 2007年第z1期184-186,共3页
In this paper,the determination of six heavy metal ions (arsenic,lead,cadmium,chromium,mercury and nickel) in the Chinese Herb by inductively coupled plasma-mass spectrometry (ICP-MS) was studied.The samples were dige... In this paper,the determination of six heavy metal ions (arsenic,lead,cadmium,chromium,mercury and nickel) in the Chinese Herb by inductively coupled plasma-mass spectrometry (ICP-MS) was studied.The samples were digested by nitric acid and hydrogen peroxide in a microwave oven.The Sc,Y,In,Bi were added as internal standards to eliminate the matrix interferences.The results show that most of the relative standard deviations of these trace elements were below 3.5%,the standard recoveries of these elements were in the range of 91%-107%,and the detection limits were in the range of 0.001-0.006 μg·L-1. This method is accurate,rapid,convenience,and can be applied to the determination of arsenic,lead,cadmium,chromium,mercury and nickel in Chinese Herb with good results. 展开更多
关键词 Chinese Herb Heavy metal element Inductively coupled plasma-mass spectrometry
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A Survey of 16 Rare Earth Elements in the Major Foods in China 被引量:29
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作者 JIANG Ding Guo YANG Jie +1 位作者 ZHANG Shuo YANG Da Jin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2012年第3期267-271,共5页
Objective The aim of this survey was to investigate the level of contamination of the most consumed foods in China with 26 rare earth elements (REEs), and to provide the basic data for establishing and revising food... Objective The aim of this survey was to investigate the level of contamination of the most consumed foods in China with 26 rare earth elements (REEs), and to provide the basic data for establishing and revising food safety standards for REEs. Methods Sixteen REEs in foods were measured by inductively coupled plasma-mass spectrometry (ICP-MS) in the labs of the Centers for Disease Control and Prevention of four provinces and two municipalities, during 2009-2020. Results 2 231 samples were analyzed and 29 221 concentration data of 16 REEs were collected. The REEs levels in the investigated foods varied significantly. The concentrations of cerium (Ce), dysprosium (Dy), yttrium (Y), lanthanum (La), and neodymium (Nd) were relatively high, while the remaining eleven REEs were at low levels. The mean values of total rare earth element oxides (REOs) in cereals, fresh vegetables, fresh aquatic products, fresh meats and eggs varied from 0.052 mg/kg to 0.337 mg/kg. Conclusion 16 REEs in the major foods were at very low contamination levels in the investigated regions. 展开更多
关键词 Rare earth elements FOOD Inductively coupled plasma-mass spectrometry (ICP-MS) China
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Pharmacokinetics and bioequivalence of ranitidine and bismuth derived from two compound preparations 被引量:3
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作者 Quan Zhou Zou-Rong Ruan Hong Yuan Bo Jiang Dong-Hang Xu 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第17期2742-2748,共7页
AIM: To evaluate the bioequivalence of ranitidine and bismuth derived from two compound preparations. METHODS: The bioavailability was measured in 20 healthy male Chinese volunteers following a single oral dose (eq... AIM: To evaluate the bioequivalence of ranitidine and bismuth derived from two compound preparations. METHODS: The bioavailability was measured in 20 healthy male Chinese volunteers following a single oral dose (equivalent to 200 mg of ranitidine and 220 mg of bismuth) of the test or reference products in the fasting state. Then blood samples were collected for 24 h. Plasma concentrations of ranitidine and bismuth were analyzed by high-performance liquid chromatography and inductively coupled plasma-mass spectrometry (ICPMS), respectively. The non-compartmental method was used for pharmacokinetic analysis. Log-transformed Cmax, AUC(0-t) and AUC(0-∞) were tested for bioequivalence using ANOVA and Schuirmann two-one sided t-test. Tmax was analyzed by Wilcoxon's test. RESULTS: Various pharmacokinetic parameters of ranitidine derived from the two compound preparations, including Cmax, AUC(0-t), AUC(0-∞), Tmax and T1/2, were nearly consistent with previous observations. These parameters derived from test and reference drug were as follows: Cmax(0.67 ± 0.21 vs 0.68 ± 0.22 mg/L), AUC(0-t)(3.1 ± 0.6 vs 3.0 ± 0.7 mg/L per hour), AUC(0-∞)(3.3 ± 0.6 vs 3.2 ± 0.8 mg/L per hour), Tmax (2.3 ± 0.9 VS 2.1 ± 0.9 h) and T1/2 (2.8 ± 0.3 vs 3.1 ± 0.4 h). In addition, double-peak absorption profiles of ranitidine were found in some Chinese volunteers. For bismuth, those parameters derived from test and reference drug were as follows: Cmax (11.80 ± 7.36 vs 11.40 ± 6.55 μg/L), AUC(0-t) (46.65 ± 16.97 vs 47.03 ± 21.49 μg/L per hour), Tmax (0.50 ± 0.20 vs 0.50 ± 0.20 h) and T1/2 (10.2 ± 2.3 vs 13.0 ± 6.9 h). Ninety percent of confidence intervals for the test/reference ratio of Cmax, AUC(0-t) and AUC(0-∞) derived from both ranitidine and bismuth were found within the bioequivalence acceptable range of 80%-125%. No significant difference was found in Tmax derived from both ranitidine and bismuth. CONCLUSION: The two compound preparations are bioequivalent and may be prescribed interchangeably. 展开更多
关键词 RANITIDINE BISMUTH Compound preparation BIOEQUIVALENCE PHARMACOKINETICS Healthy volunteers High-performanace liquid chromatography Inductively coupled plasma-mass spectrometry
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Distribution and Relationships of Seven Trace Elements (Cr, Fe, Mn, Ni, Co, Cu and Zn) in Freshwater Fish from Five French Fishing Areas
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作者 Laurent Noel Sandrine Millour +3 位作者 Rachida Chekri Mathilde Merlo Jean-Charles Leblanc Thierry Guérin 《Journal of Food Science and Engineering》 2014年第3期131-147,共17页
The concentrations of seven essential trace elements in 149 freshwater fish from eight fish species (European eel, bream, common carp, European catfish, roach, perch, pike and pikeperch) from five different French f... The concentrations of seven essential trace elements in 149 freshwater fish from eight fish species (European eel, bream, common carp, European catfish, roach, perch, pike and pikeperch) from five different French fishing areas from contaminated and control sites were measured by inductively coupled plasma mass spectrometry after microwave digestion under pressure. Differences in the concentration of elements in the muscles of these species were examined and the mean levels were compared for each species with previous French and European studies. The condition factor and the differences between the control and contaminated sites and between predatory and non-predatory groups, with respect to the concentration of these elements, were also studied. 展开更多
关键词 Trace elements freshwater fish occurrence data inductively coupled plasma-mass spectrometry (ICP-MS).
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电感耦合等离子体发射光谱法测定铍盐中痕量硼 被引量:4
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作者 唐晓星 马继飞 +2 位作者 刘忠英 李玉兰 钱渊 《分析试验室》 CAS CSCD 北大核心 2020年第8期910-913,共4页
建立了ICP-OES法测定铍盐中痕量硼的分析方法。铍盐样品采用HNO3超声溶解后,直接测定。经硼全谱分析,B 249.773 nm和B 249.677 nm受铍干扰严重,无法使用。B 182.641 nm和B 208.959 nm可用于高纯铍盐中B含量的分析,但B 182.641 nm不能用... 建立了ICP-OES法测定铍盐中痕量硼的分析方法。铍盐样品采用HNO3超声溶解后,直接测定。经硼全谱分析,B 249.773 nm和B 249.677 nm受铍干扰严重,无法使用。B 182.641 nm和B 208.959 nm可用于高纯铍盐中B含量的分析,但B 182.641 nm不能用于硫含量高的铍盐样品。B 182.641 nm和B 208.959 nm的检出限分别为0.12 mg/kg和0.17 mg/kg,相对标准偏差小于2.8%,满足核纯级铍盐中痕量硼的分析需求。采用铍盐实际样品对比了标准加入法和外标法的测量差异,结果显示,使用HNO3(1+19)基体的外标校正溶液,测量结果明显低于标准加入法,相对偏差在-7.5%^-40%之间,不建议使用。 展开更多
关键词 电感耦合等离子体发射光谱 铍盐
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Comparative study on rare earth elements from Flos Sophorae and Fructus Sophorae 被引量:9
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作者 李玉美 仲浩 吕元琦 《Journal of Rare Earths》 SCIE EI CAS CSCD 2012年第4期397-400,共4页
Flos Sophorae and Fructus Sophorae are two kinds of traditional Chinese medicines. In this work, the two kinds of traditional Chinese medicines collected from eleven areas of Dezhou, were analyzed by inductively coupl... Flos Sophorae and Fructus Sophorae are two kinds of traditional Chinese medicines. In this work, the two kinds of traditional Chinese medicines collected from eleven areas of Dezhou, were analyzed by inductively couple plasma-mass spectrometry (ICP-MS) to compare the content and distribution of 14 kinds of rare earth elements (REEs). The method was verified by analyzing GBW07605 certified reference material. The results showed that ICP-MS is an accurate, sensitive and reliable technique for determining REEs in traditional Chinese medicine. There were big differences in contents for REEs in Flos Sophorae and Fmctus Sophorae from different areas. The contents of total REEs in Flos Sophorae samples from different areas ranged from 1.0785 to 2.2659 μg/g, while those in Fmctus Sophorae from 0.6826 to 1.0527 ktg/g. The contents of total REEs in Flos Sophorae samples from different areas were obviously higher than those in Fmctus Sophorae of the same area and there was big difference between various Flos Sophorae samples. Interestingly, the higher the content of total REEs in Flos Sophorae samples, the lower the content of total REEs in Fmctus Sophorae samples of the same area. The plots of normalized element concentration versus atomic number showed some characteristic distribution trends. The distribution trend of light REEs (La-Gd) was relatively fiat except a positive Eu anomaly, however, that was steep and discrepant for heavy REEs (Tb-Lu). The results could provide a valuable reference for understanding the relationship between the curative mechanism, pharmacology characteristics and their geological condition for the two traditional Chinese medicines investigated. 展开更多
关键词 rare earth elements (REEs) inductively couple plasma-mass spectrometry (ICP-MS) Flos Sophorae Fructus Sophorae
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