共查询到20条相似文献,搜索用时 203 毫秒
1.
2.
3.
4.
原子吸收分光光度法测定骨碎补药材中的重金属 总被引:1,自引:0,他引:1
目的建立原子吸收分光光度法,测定骨碎补药材中的铅、镉、砷、汞、铜重金属含量。方法以原子吸收分光光度法在324.8 nm波长处检测铜含量,在283.3 nm波长处检测铅含量,在228.8 nm波长处检测镉含量;另采用原子荧光光谱法测定砷、汞的含量。结果 10批骨碎补药材中的重金属含量,铜为2.687 5~8.521 7 mg/kg,镉为0.200 6~0.270 8 mg/kg,铅为0.250 4~1.000 mg/kg,汞为0.003 4~0.029 4 mg/kg,砷0.006 6~0.053 3 mg/kg。结论 10批骨碎补样品中重金属含量均符合2005年版《中国药典(一部)》和香港《中成药注册申请手册》中有关重金属标准的规定。 相似文献
5.
七种中成药中有毒重金属元素的测定 总被引:1,自引:0,他引:1
目的建立原子吸收分光光度法测定灯盏花素注射液、丹参注射液、清开灵注射液、胃康灵胶囊、冠心丹参胶囊、康尔心胶囊和桂龙咳喘宁胶囊中砷、汞、铅、镉的残留量。方法湿法消解样品,运用氢化物发生原子吸收分光光度法测定砷、汞和铅的含量,用空气-乙炔火焰原子吸收分光光度法测定镉的含量。结果在丹参注射液和康尔心胶囊中,砷的回收率分别为89.01%~116.41%和93.60%~103.17%,汞的回收率分别为80.70%~113.83%和86.12%~115.88%,铅的回收率分别为96.27%~109.48%和99.97%~110.61%,镉的回收率分别为93.00%~114.40%和96.50%~102.93%。结论7种中成药中砷、汞、铅、镉的残留量均不超标。 相似文献
6.
目的:建立骨刺片中铅( Pb)、镉( Cd)、砷( As)、汞( Hg)、铜( Cu)等重金属及有害元素的质量控制方法。方法采用石墨炉原子吸收分光光度法测定铅、镉含量;火焰原子吸收分光光度法测定铜含量;氢化物原子吸收光谱法测定砷含量;冷原子吸收法测定汞含量。结果5种元素的检出限范围为0.0018~0.2135μg? g-1;线性关系良好( r≥0.9988);平均回收率为92.0%~95.0%;RSD≤3.7%。结论该方法操作简便、快速。可用于骨刺片中重金属及有害元素含量的检测。 相似文献
7.
目的建立地龙注射液中铅、镉、砷、汞、铜残留量的方法。方法采用石墨炉原子吸收法测定铅和镉含量,采用氢化物发生-原子荧光光度法测定砷和汞含量,采用火焰原子吸收分光光度法测定铜含量。结果线性范围铅为0~80ng/ml,镉为0—8ng/ml,砷为0~37.5ng/ml,汞为0.2ng/ml,铜为0~800ng/ml;加标回收率分别在96.0%-102.0%(铅),94.9%~100.0%(镉),92.6%~102.0%(砷),85.3%-87.4%(汞),91.8%~99.5%(铜),RSD〈4.1%(n=6)。结论所建立的方法操作简便快速,结果准确可靠。 相似文献
8.
9.
10.
11.
目的 考察不同产地红参中铁(Fe)、锰(Mn)、锌(Zn)、铜(Cu)、硒(Se)、铅(Pb)、砷(As)、汞(Hg)和镉(Cd)9种无机元素的含量差异。方法 采用微波消解技术及电感耦合等离子体质谱(ICP-MS)法测定28批不同产地红参中9种无机元素含量,并采用SPSS 22.0软件进行聚类分析。结果 不同产地红参Fe、Mn、Zn含量均较高,Se含量极低,有害元素Pb、As、Hg、Cd、Cu含量均符合《中国药典》限量标准。28批样品聚类为两类。结论 不同产地红参均富含Fe、Mn、Zn,其重金属及有害元素污染程度小,安全性相对较好。不同产地红参Fe、Zn、Cu、Se、As元素含量差异性均较小,Mn、Pb、Hg、Cd元素差异性较大。 相似文献
12.
目的:采用微波消解-电感耦合等离子体质谱(ICP-MS)法测定人参、白茅根、白头翁、苍术、大黄、骨碎补、苦参、龙胆、红参、肉苁蓉10种中药材及饮片中重金属及有害元素的含量。方法:采用微波消解法对样品进行前处理,电感耦合等离子体质谱(ICP-MS)法对500批中药材及饮片中铅、镉、砷、汞、铜5种重金属及有害元素进行含量测定,并对样品中镍、铬、钡3种金属元素含量进行考察,应用SPSS19.0软件对数据结果进行统计学分析。结果:同一品种8种元素测定值与来源(野外采集、基地种植与市售饮片)及产地无明显相关性。500批样本测定结果显示:铅、镉、砷、汞、铜元素总超标率分别为6.60%、25.20%、1.00%、0.00%、0.40%;元素残留量与药材品种存在一定的相关性,镉元素在白头翁、苍术、骨碎补、龙胆药材中容易蓄积,而铅元素易在白头翁药材中蓄积残留,导致残留量较高。大黄、白头翁、龙胆中钡元素、镍元素、铬元素含量均明显高于其他品种。汞均未超出0.2 mg·kg-1;除5批样本外,砷均未超出2 mg·kg-1;除2批样本外,铜均未超出20 mg·kg-1,表明上述10种中药材及饮片中砷、汞、铜元素残留方面的安全隐患较低。结论:有必要对中药材及饮片中部分重金属元素的含量加以监管,以保证中药的品质和临床用药安全。该方法准确、简便、灵敏,可为中药材及饮片中重金属及有害元素的检测与控制提供参考。 相似文献
13.
Miranda M Alonso ML Castillo C Hernández J Benedito JL 《Veterinary and human toxicology》2000,42(5):265-268
This study evaluated the effect of sex on the accumulation of arsenic, cadmium, lead, copper and zinc in calves. Samples of liver, kidney, muscle and blood of 312 animals (127 females and 185 males) were analysed after acid digestion using atomic absorption spectrophotometry (AAS). Arsenic was determined by AAS interfaced with continuous flow hydride generation, cadmium and lead by graphite furnace, and copper and zinc by flame. Females accumulated more cadmium, copper and zinc in kidneys than did males. The zinc blood levels in females were higher than in males, whereas copper in liver was higher in males than in females. In the case of arsenic and lead, no significant statistical differences between males and females were found. 相似文献
14.
15.
16.
目的:建立医院制剂克白合剂的HPLC对照指纹图谱,为科学评价和有效控制其质量提供可靠的方法,并对其可能存在的有害残留物进行检测。方法:采用HPLC法对克白合剂进行了多成分指纹图谱研究,对主要的色谱峰进行了归属性分析及相似度评价;采用原子吸收分光光度法对制剂中的铅、镉、砷、汞、铜等重金属及有害元素、采用气相色谱法对六六六等有机氯类农药残留量进行测定;采用平皿法对微生物等进行限度测定。结果:以S1样品(S1为方法学样品)图谱作为参照图谱,采用平均数法,时间窗宽度为0.1,经过多点校正后自动匹配,形成保留时间较为稳定、峰形明显的19个共有峰图谱作为样品对照指纹图谱,10批克白合剂样品与对照指纹图谱比较相似度均高于0.90;克白合剂中的铅、镉、砷、汞、铜等重金属及有害元素、六六六等有机氯类农药残留量及微生物均未超出《中国药典》2020年版的相关执行标准。结论:所建立的指纹图谱为复方制剂的全面质量控制探索一条可行之路,并为其临床用药的安全性与有效性提供质量保障。 相似文献
17.
Oral daily intake of cadmium, lead, manganese, copper, chromium, mercury, calcium, zinc and arsenic in Belgium: a duplicate meal study 总被引:1,自引:0,他引:1
One hundred and twenty four daily meals collected in three areas of Belgium were analysed for their content of several metals. The following median values for 24-hr intakes were found: cadmium, 15 micrograms; lead, 95.7 micrograms; manganese, 2.6 mg; copper, 1.3 mg; chromium, 0.24 mg; mercury, 6.5 micrograms; calcium, 541 mg; zinc, 13.2 mg; arsenic, 11.5 micrograms. The distributions of the individual results suggest that about 1-2% of the daily meals sampled had mercury and cadmium contents that exceeded the tolerable level proposed by WHO; in the case of lead this level was exceeded in 10%. 相似文献
18.
19.
A rapid and accurate method of quantifying heavy metal pollution in commercial traditional Chinese medicines (TCMs) is described. The method uses modified wet digestion for sample preparation and atomic absorption spectrophotometry for detecting the content of copper (Cu), cadmium (Cd), arsenic (As), lead (Pb) and mercury (Hg). The determination limits of the method were 0.001, 0.002, 0.001, 0.001 and 0.001 mg/kg for Cu, Cd, As, Pb and Hg, respectively. The method was applied to the quantification of heavy metal pollution in 50 different commercial TCMs in a total of 250 samples. Heavy metal contents in the samples investigated were found at different levels. The level of As did not exceed the legal limit stated in the China pharmacopoeia 2010, whereas Cu, Cd, Pb and Hg were above permitted levels in some samples. 相似文献
20.
Concentrations of arsenic, cadmium, copper, lead, mercury, and zinc in human placentas from two cities in Ukraine 总被引:2,自引:0,他引:2
Zadorozhnaja TD Little RE Miller RK Mendel NA Taylor RJ Presley BJ Gladen BC 《Journal of toxicology and environmental health. Part A》2000,61(4):255-263
Ukraine is a highly industrialized country with major environmental problems and deteriorating reproductive health. Heavy metals are known reproductive toxins; a study was undertaken to determine whether they were present at sufficient concentrations to be playing a major role in these health problems. Placental concentrations of arsenic, cadmium, copper, lead, mercury, and zinc were determined in 200 women from the general population of two urban areas of Ukraine, Kyiv and Dniprodzerzhinsk. Arsenic was detected in only 5% of the samples, lead in 22%, and mercury in 28%. Cadmium was detected in almost all samples, with a median of 5.2 ng/g. Concentrations of lead, mercury, and cadmium were low compared to those reported elsewhere, while zinc and copper concentrations were comparable. 相似文献