藏药材白花龙胆花中微量元素的分析

对藏药材白花龙胆花中17种微量元素（Cu、Zn、Fe、Mn、Co、Ni、Se、Cr、Mg、Ca、K、Na、P、As、Hg、Pb、Cd）的含量作了测定。结果表明,白花龙胆花中含有较高的人体必需微量元素和常量元素,其中常量元素K、Ca、Na、Mg和微量元素Zn、Fe、Mn的含量均较高。     

微波辅助消解-电感耦合等离子体原子发射光谱法(ICP-AES)测定几种血藤中17种元素

建立电感耦合等离子体原子发射光谱法(ICP-AES)测定血藤类中药中K,Ca,Mg,P,Sr,Fe,Mn,Zn,Cu,Co,Cr,Al,Ba,Ni,As,Pb和Cd 17种常量和微量元素含量的分析方法。样品用微波辅助消解,ICP-AES法检测几种血藤中17种元素的含量,方法的检出限为0.000 03~0.009 81μg/mL,加标回收率88.37%~110.00%,相对标准偏差(RSD)均小于5.0%,方法可快速、灵敏、准确测定血藤类中药中多种常量、微量元素的含量。血藤样品中除含有人体必需的常量元素K,Ca,Mg外,还含有Fe,Zn,Mn,Cr,Co等必需的微量元素和其它元素P,Ni,Ba,Al,Sr,Pb,Cd,Ba等。     

三七生长初期不同部位微量元素的含量测定

采用电感耦合等离子体发射光谱法(ICP-AES),对文山地区GAP种植及农户常规种植的生长初期三七不同部位中的微量元素Mg、P、Ca、Mn、Na、Fe、Co、Cu、Zn、Mo、Cr、Ni、Ge、Se等14种元素进行了测定分析。结果表明,三七的根、茎、叶中含有丰富的人体必需Mg、P、Ca、Mn、Na、Fe、Co、Cu、Zn、Mo、Ge、Se等有益元素,且P、Ca、Mg、Fe含量较高,Na、Mn、Co、Zn次之,Co、Mo、Cr、Ni、Ge、Se含量均较低。为三七GAP栽培标准和特征制订、三七道地药材的化学特征——化学指纹图谱的建立及研究提供理论依据。     

桂花中微量元素的光谱测定

采用火焰原子吸收法同时测定了桂花中K、Na、Ca、Mg、Pb、Cd、Cu、Mn、Co、Zn、Cr、Fe等十二种微量元素的含量。方法的相对标准偏差介于0．07％～2．31％之间,回收率介于93．0％～106．0％之间,分析结果满意,并表明,桂花中含有丰富的金属元素,元素含量由高到低排列顺序为：K,Ca,Mg,Na,Fe,Zn,Cu,Mn,Pb,Co,Cr,CA,说明桂花具有较高的营养价值。     

电感耦合等离子体原子发射光谱法(ICP-AES)测定不同品种山药中矿物质元素与对比研究

采用微波消解样品,运用电感耦合等离子体原子发射光谱法同时测定山药中K,Na,Ca,Mg,Zn,Fe,Cu,Mn,Se,Pb,Cd和Cr 12种元素。结果表明:方法简便、快速、准确;山药富含对人体有益的K,Ca,Fe,Mg,Zn,Mn,Se等矿物质元素,其肉质中重金属元素Pb,Cd,Cr含量均未超过国家食品卫生标准。     

FAAS法测定红树内生真菌Nigrospora sp.菌体中的微量元素

目的测定红树内生真菌Nigrospora sp.菌体中的微量元素。方法采用火焰原子吸收光谱法(FAAS)对湛江红树木榄内生真菌菌体中的Fe、Zn、Cu、Ca、Mg、Mn、Cd和Pb等微量元素进行了分析测定,结果发现其Fe、Zn、Cu、Ca、Mg和Mn等元素的含量都比较丰富,未检出Cd和Pb。数据显示相对标准偏差为0.30%～3.93%,回收率为96.8%～102.6%,结论该法快速、简单、结果可靠,为进一步对红树木榄内生真菌探讨研究提供更全面的分析数据。     

松口蘑中微量元素的测定

采用火焰原子吸收法同时测定了松口蘑中K、Ca、Na、Mg、Fe、Pb、Cd、Co、Cr、Zn、Mn、Cu等12种元素的含量。方法的相对标准偏差在0.08％－2.32％范围,回收率在97.1%－108.3%范围。结果表明,在三种松口蘑样品中,除含有较高的K、Na、Ca、Mg和一定量的有害元素Cd、Pb外,其余6种对人体有益的微量元素较为丰富。     

微波辅助消解ICP-AES法测定小茴香中20种元素

采用微波消解法处理小茴香样品,电感耦合等离子体发射光谱(ICP-AES)测定其中Na、K、Sr、Ca、Mg、P、As、Zn、Pb、Co、Cd、Ni、Ba、Fe、Mn、Cr、Cu、Al、Ti和B 20种常量和微量元素的含量。20种元素的检出限为0.00002~0.00468μg·mL-1,回收率为89.50%~107.89%,相对标准偏差(RSD)均小6%。结果显示,小茴香果实及其嫩叶中除含有人体必需的常量元素K,Na,Ca,Mg,P外,还含有Fe、Zn、Mn、Cr、Co等必需的微量元素和其他元素Ti、B、Ni、Al、Sr、Ba等。     

原子吸收光谱和原子荧光光谱法测定藤茶中微量元素含量

采用微波消解-火焰原子吸收光谱和原子荧光光谱法对藤茶中Fe、Na、Zn、Pb、Cr、Co、Ca、Mg、Cd、As等16种微量元素进行了分析测定。该测定方法的回收率在96%～101%之间,相对标准偏差(RSD)小于5%。结果表明,藤茶中富含Ca、Mg、Fe、Mn、K、Na、Cr、Zn等对人体有益的微量元素,同时还含有微量的有害元素Cd、Pb、Sb,没有发现As和Hg。     

电感耦合等离子体原子发射光谱法测定新疆洋葱籽中常量/微量元素

采用微波消解法处理样品,以电感耦合等离子体原子发射光谱法(ICP-AES)测定新疆洋葱籽样品中Co、Cr、Ca、K、Mg、P、Fe、Mn、Na、Ni、Sn、Zn、Cd、As、Se、Cu、Mo和V 18种常量/微量元素。结果显示,新疆洋葱籽中含有丰富的K、Mg、P、Ca和Na等常量元素,此外微量元素Fe、Mn、Zn、Cr、Ni、Cu的含量也较丰富。新疆洋葱籽中含有很多对人体有益的常量及微量元素,有较高的药用价值。     

电感耦合等离子体原子发射光谱法测定紫斑牡丹胚乳和胚中矿物质元素

为了给离体体细胞胚的人工胚乳配制提供矿物质元素种类和数量方面的参考,用浓硝酸-高氯酸(4∶1)的混合溶液消解紫斑牡丹的胚乳和胚样品,采用电感耦合等离子体-原子发射光谱法(ICP-AES)测定了样品中的(K、Na、Ca、Mg、Fe、Cu、Zn、Mn、Li、Ni、B、Ag、Cd、Pb)14种矿物质元素含量。结果表明:各元素的校准曲线的回归系数在0.9990～0.9999之间,线性良好;方法精密度高,能多元素同时分析;紫斑牡丹胚乳和胚中均含有植物生长必需的K、Ca、Mg 3种大量元素,Fe、Mn、Cu、Zn、Ni、B 6种微量元素,1种有益元素Na,及Li和Pb,Ag、Cd则未被检测到。在被检测到的12种元素中,Mg、Zn、Mn、Fe、K、Na、Li与Ni 8种元素在胚乳中的含量低于胚中的含量,Ca、Cu、Pb与B在胚乳中的含量则高于胚中的含量。     

中老年人脑动脉硬化病患者血清矿物元素的变化及其临床意义

为探讨中老年脑动脉硬化病患者血清微量元素的变化及其临床意义,使用电感耦合等离子体直读光谱仪测定了７８例脑动脉硬化病患者及６１例健康对照的血清矿物元素的含量,并作了统计学分析。结果表明,脑动脉硬化组镁、镉、铝显著升高,钙、锌、钴、铁显著降低。脑动脉硬化发病可能与血清Ｃａ、Ｃｏ、Ｚｎ、Ｃｄ、Ｍｇ等水平异常有关,观察Ｃｄ／Ｚｎ、Ｃｕ／Ｚｎ、Ｍｇ／Ｃａ具有更显著的统计学意义。     

Monitoring of inorganic species distribution in water and sediments of Aso river

Analytical results are reported for the determination of inorganic species in water and sediments sampled in the Aso river ecosystem. The species determined are Cd, Co, Cr, Cu, Fe, Mn, Ni, Zn, Hg, F-, NO3-, SO4--, Na, K, Ca, Mg, NH4+ in water, and Cd, Co, Cr, Cu, Fe, Mn, Ni, Zn, Hg in sediments. For all the elements, in addition to detection limits, precision and accuracy are given: the former, expressed as relative standard deviation (Sr), and the latter, expressed as relative error (e), were good, being in all cases lower than 6%.     

Spatial and temporal distribution of inorganic species in water and sediments of the Tronto River ecosystem

Analytical results are reported for the determination of inorganic species in water and sediments sampled in the Tronto river ecosystem. The species determined are Cd, Co, Cr, Cu, Fe, Mn, Ni, Zn, Hg, F, NO3-, SO4-, Na, K, Ca, Mg, NH4+ in integrated water, and Cd, Co, Cr, Cu, Fe, Mn, Ni, Zn, Hg in sediments. For all the elements, in addition to detection limits, precision and accuracy are given: the former, expressed as relative standard deviation (Sr), and the latter, expressed as relative error (e), were good, being in all cases lower than 5%.     

Inorganic species in water and sediments of the Lamone and Marzeno rivers ecosystem

Analytical results are reported for the determination of inorganic species in water and sediments sampled in the Lamone and Marzeno rivers ecosystem. The species determined are Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn, Hg, F-, Cl- Br-, NO3-, SO4--, Na+, K+, Mg++, Ca++, NH4+ in superficial water, and Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn, Hg in sediments. For all the elements, in addition to detection limits, precision and accuracy are given: the former, expressed as relative standard deviation (s(r)), and the latter, expressed as relative error (e), were good, being in all cases lower than 6%.     

Senio river ecosystem: characterization and distribution of inorganic species in water and sediments

Analytical results are reported for the determination of inorganic species in water and sediments sampled in the Senio river ecosystem. The species determined are Cu, Pb, Cd, Zn, Co, Cr, Ni, Fe, Mn, Hg, F-, Cl-, Br, NO3-, SO4-, Na+, K+, Ca++, Mg++, NH4+ in integrated water, and Cu, Pb, Cd, Zn, Co, Cr, Ni, Fe, Mn, Hg in sediments. For all the elements, in addition to detection limits, precision and accuracy are given: the former, expressed as relative standard deviation (sr), and the latter, expressed as relative error (e), were good, being in all cases lower than 6%. Limitedly to Cu, Pb, Cd and Zn a critical comparison with voltammetric measurements is also discussed.     

Trace elements in Variegated Bolete (Suillus variegatus) fungi

Metallic elements such as Ag, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Rb, Sr, and Zn were determined using ICP-OES in a representative set of fifteen fruiting bodies of the edible fungus Suillus variegatus. Fruiting bodies were collected from unpolluted areas near the village of Lubichowo of the Bory Tucholskie forest complex in northern Poland in 2007?C2008. The caps were richer in Ag, Al, Cd, Cr, Cu, Fe, K,Mg, Ni, Rb, and Zn, and the stipes in Ba, Ca, Mn, Na, Pb, and Sr. Cobalt concentration in the caps and stipes was similar. In the caps, the content of the elements decreased in the order (mg per kg of dry weight): K 29000 ± 3700, Fe 1600 ± 80, Mg 990 ± 110, Rb 320 ± 86, Zn 90 ± 19, Ca 75 ± 34, Al 68 ± 32, Na 40 ± 18, Cu 19 ± 7, Mn 13 ± 7, Cd 1.0 ± 0.5, Ni 0.64 ± 0.32, Ag 0.40 ± 0.20, Cr 0.33 ± 0.06, Pb 0.20 ± 0.17, Ba 0.19 ± 0.11, Sr 0.15 ± 0.09, and Co 0.070 ± 0.050. Apparently, S. variegatus collected from background areas are relatively low in Pb and Cd and so are suitable for human consumption.     

Determination of impurities in nuclear fuel element components by neutron activation analysis

Neutron activation analysis methods for the determination of impurities in zirconium cladding material and uranium oxide are described. Detection limits for the elements Al, Cd, Cr, Co, Cu, Hf, Fe, Mn, Ni, W and U in zirconium are below that required by the ASTM B 352-79 standard. The method has been tested on the NIST SRM 360a Zircaloy-2 from which the elements Na, Mg, Al, Ca, V, Cr, Fe, Co, Ni, Cu, Eu and U have been detected. The values for Cr, Fe, Ni and Cu are compared with the certified values. A method for the pre-irradiation separation of the elements Mg, Na, Al, K, Sc, Ca, V, Mn, Cr, Fe, Co, Cu, Zn, Rb, Zr, Cd, Cs, REE and Hf from uranium has been developed. A neutron activation analysis method for the determination of those elements in uranium is described. The method is tested by the analysis of the IAEA reference sample SR-54/64. The elements Al, Mn, V, Cu, Cr, Co, Ni and Fe have been detected and the results compared with the certified values.