原子吸收光谱法测定皇冠草地上部分的7种微量元素

采用原子吸收光谱法测定了皇冠草地上部分所含微量元素铜、锰、锌、铁、镉、铅、铬.结果表明,皇冠草地上部分含有较丰富的铜、锰、锌、铁,RSD≤4.23％(n=4),加标回收率99.20％～103.00％.     

广西黑老虎中微量元素测定

采用原子吸收光谱法测定广西黑老虎中锰、铁、铜、锌、镁、钙等6种微量元素，并与笋干和16种蔬菜中6种微量元素含量进行比较，结果发现，黑老虎中锰、铁、铜、锌、镁、钙等6种微量元素含量均较高，其中锰、钙、铜、锌含量高于笋干，锰、铁、铜、锌含量远远高于16种蔬菜中微量元素的含量，钙含量高于部分蔬菜含量。提示广西黑老虎中含有丰富的人体所需微量元素，作为药用植物，具有极高的药用价值。     

急性气管—支气管炎患者头发及血清微量元素的测定及其临床意义

用原子吸收光谱法测定了86例急性气管-支气管炎患者及66例健康人头发及血清锌、铁、铜、锰4种微量元素的含量。结果显示,锌、铁元素的含量比对照组低,并表现有显著性差异(P<0.01),铜、锰元素的含量在两组之间无显著性差异(P>0.05)。     

癫痫与微量元素

评论了微量元素锌,铜,铁,锰与癫痫的关系。癫痫患者血浆中锌、铜、铁含量比正常对照组增高,锰含量降低。锌／铜比值较正常对照组明显降低。而癫痫患者发锌,铁含量比正常人对照组升高,发铜,锰含量降低。     

碘离子胁迫对绿豆萌发过程4种微量元素的影响

用火焰原子吸收法测定绿豆萌发过程中铜、铁、锰和锌的含量,研究不同含量碘离子胁迫对绿豆萌发过程中生理活动的影响。结果显示,各含量培养液所培养的绿豆芽苗中4种元素含量随培养时间的增加而显著降低,适当质量浓度的碘离子(20~80 mg/L)可以促进绿豆对铜、铁、锌的溶出,但碘离子质量浓度过高(100 mg/L)时将抑制绿豆对铜、铁、锰的溶渗出,培养末期绿豆均能从培养液中重新利用铁、锰、锌3种微量元素。     

延边地区65～108岁健康老人头发中锌、铜、铁、锰、镁的含量

用原子吸收光谱法测定延边地区317名65～108岁老人头发中锌、铜、铁、锰、镁含量，观察不同民族、性别、年龄老人这些元素的差异。结果表明：1.朝鲜旗发锌低于汉族，满族发铜低于汉族、朝鲜族，汉族发镁高于朝鲜族、满族，发铁、发锰在汉、朝、满民族之间无区别。2．汉族、朝鲜族男发锌高于女性，汉族女性发铜高于男性，发铁、发锰、发镁在性别之间无区别。3、90岁组朝鲜族发锰、发镁低于65岁、76岁组，朝鲜族发锌、发铜、发铁在65～108岁之间无统计学意义。     

学龄前儿童头发中九种元素分析

用原子吸收光谱法测定了长春市某幼儿园１２０名正常儿童头发中铁、锌、铜、锰、钙、镁、钠、钾、铅九种元素含量。对不同年龄、性别儿童发中各元素含量进行了对比分析,并对微量元素铁、锌、铜、锰含量与有关标准进行了比较,表明缺铁现象普遍存在,发铁缺乏率达９４．７４％以上。     

原子吸收光谱法测定野生及养殖灵芝中10种元素含量

采用火焰原子吸收光谱法测定了养殖及野生灵芝中的铜、钠、铁、钾、镁、钙、锰、锌、锶、铅元素含量。结果表明,野生灵芝和养殖灵芝中均含有较高的钾,其中野生灵芝中铜、钙、锶、锌含量较高,养殖灵芝中钠、铁、镁、锰含量较高。可为探讨野生灵芝与养殖灵芝中含量及其疗效的关联性等提供科学依据。     

微波消解—火焰原子吸收法测定豌豆中微量元素锰、锌、铜、铁的含量

探讨了采用微波消解法处理样品,以FAAS法在同一体系中测定豌豆中微量元素锰、锌、铜、铁的方法,包括硝酸、过氧化氢的用量以及消化时间长短对实验的不同影响和在同一体系中锰、锌、铜、铁的彼此干扰情况。在选定的条件下,测得豌豆中锰、锌、铜、铁的含量分别为:锰10.05 mg/g、锌9.48 mg/g、铜3.06 mg/g、铁18.30 mg/g,回收率96.8%~98.9%。     

火焰原子吸收光谱法分析香青兰中微量元素的溶出特性及化学形态

结合香青兰的药用功效,对其铜、锌、锰、铁、镁、镍6种微量元素的含量和形态进行了分析.分别用0.45 μm滤膜、D101型大孔吸附树脂,将香青兰水煎液中铜、锌、锰、铁、镁、镍分为悬浮态和可溶态、有机态和无机态;并采取正辛醇-水分配体系模拟水煎液中铜、锌、锰、铁、镁、镍在人体胃肠中的分配情况,建立了上述6种元素的4种形态分离分析方法,用火焰原子吸收光谱法测定6种微量元素的含量、分布及其在不同溶剂中的溶出特性和化学形态.结果表明,方法的回收率在92%～106%范围内,相对标准偏差均在3.8%以下,铜、锌、锰、铁、镁、镍是各以某种形态为主的多种形态共存的混杂体系.     

市售蘑菇中微量元素测定分析

采用原子吸收分光光度法测定了银川市大型超市里10种新鲜蘑菇中的锰、铁、锌和铜含量。各元素测定方法的变异系数为1.9%~4.2%,回收率在92.1%~104.0%之间。结果表明,锰、铁、锌和铜在蘑菇中含量的分布分别为6.75%~23.64%,80.37%~233.40%,28.00%~118.7%,2.55%~40.69%。测定结果对评价市售蘑菇微量元素营养价值具有参考意义。     

火焰原子吸收光谱法测定汉中石韦中微量元素含量

应用火焰原子吸收光谱法测定了汉中石韦中Fe、Cu、Zn、Mn共4种微量元素的含量。结果表明,汉中石韦中含有丰富的Fe（12．91μg／g）、Cu（32．12μg／g）、Nn（22．45μg／g）、Zn（72．84μg／g）等人体必需的微量元素,精密度不大于3．24％,回收率在93．5～106．2％之间。方法可靠,准确。     

花椒中五种微量元素含量的测定

采用原子吸收光谱法,测定了河南太行山区花椒及椒皮、椒籽中锰、铁、铜、锌、铅的含量。结果显示,各元素在实验范围内,线性关系良好,回收率在92%~103%之间。花椒及椒皮、椒籽中均含有微量元素,花椒中锰、铁、铜、锌、铅的含量分别为78.851、90.868、11.571、18.818、0.086μg.g-1,其中锰、铁含量丰富,有害元素铅的含量极低。椒籽中铁、铜、锌的分布量大于椒皮;椒皮中锰的分布量大于椒籽。为探讨花椒的高药用价值提供了有力的证据,椒籽中铜、锌、铁含量高于椒皮,应大力开发利用。     

Direct determination of calcium,copper, iron,magnesium, manganese and zinc in amniotic fluid samples using inductively coupled plasma-atomic emission spectrometry

An inductively coupled plasma-atomic emission spectrometric method is reported for the determination of calcium, copper, iron, manganese, magnesium and zinc. Samples are introduced directly when a sheath gas device is used. An external calibration procedure is used. The standards are prepared in a matrix composed of 0.5% (w/v) albumin and 0.76% (w/v) sodium chloride. The procedure was evaluated with a standard reference material (NBS SRM 909 Human Serum); all the values obtained are in agreement with the certified values. Results obtained for the determination of zinc, calcium, magnesium, copper, iron and manganese in amniotic fluid samples are reported.     

Determination of transition metal ions in tobacco as their 2-(2-quinolinylazo)-5-dimethylaminophenol derivatives using reversed-phase liquid chromatography with UV-VIS detection

This paper reports the utilization of solid-phase extraction and the reversed-phase high-performance liquid chromatography for the determination of six important transition metal ions: iron, cobalt, nickel, copper, zinc and manganese in tobacco with 2-(2-quinolinylazo)-5-dimethylaminophenol (QADMAP) as chelating reagent. Iron, cobalt, nickel, copper, zinc and manganese ions react with QADMAP to form colored chelates in the medium of acetic acid-sodium acetate buffer solution (pH 4.0). These chelates can be enriched by solid-phase extraction with Waters Sep-Pak-C18 cartridge, and eluted the retained chelates from cartridge with tetrahydrofuran. The chelates were separated on a Waters Nova-Pak-C18 column (150x3.9 mm, 5 microm) by gradient elution with methanol (containing 0.5% of acetic acid) and 0.05 mol/l pH 4.0 acetic acid-sodium acetate buffer solution as mobile phase at a flow-rate of 0.5 ml/min. The detection limits of iron, cobalt, nickel, copper, zinc and manganese are 10, 12, 8, 13, 17 and 22 ng/l, respectively. This method had been applied to the determination of iron, cobalt, nickel, copper, zinc and manganese in tobacco with good results.     

Study on Determination of Six Transition Metal Ions in Biological Samples by SPE and RP‐HPLC

This paper reports the utilization of solid phase extraction and the reversed‐phase high‐performance liquid chromatography (RP‐HPLC) for the determination of six transition metal ions (iron, cobalt, nickel, copper, zinc and manganese) in biological samples. The samples were digested by microwave digestion. The iron, cobalt, nickel, copper, zinc and manganese ions in the digested samples can react with 2‐(2‐quinolinylazo)‐5‐diethylaminophenol (QADEAP) to form colored chelates in pH 4.0 acetic acid‐sodium acetic buffer solutions and cetyl trimethylammonium bromide (CTMAB) medium. These chelates were enriched by solid phase extraction with C₁₈ cartridge. Then the chelates were separated on a Waters Nova‐Pak‐C₁₈ column (3.9 × 150 mm, 5 μm) by gradient elution with methanol (containing 0.5% of acetic acid and 0.1% of CTMAB) and 0.05 mol/L pH 4.0 acetic acid‐sodium acetic buffer solution (containing 0.1% of CTMAB) as mobile phase at a flow rate of 0.5 mL/min. The detection limits of iron, cobalt, nickel, copper, zinc and manganese are 3 ng/L, 4 ng/L, 2 ng/L, 4 ng/L, 8 ng/L, 10 ng/L, respectively. This method was applied to the determination of iron, cobalt, nickel, copper, zinc and manganese in biological samples with good results.     

FAAS法连续分析测试电池锌粉中镁铁铜铅锰

提出了运用FAAS法连续分析测试电池锌粉中Mg、Fe、Cu、Pb、Mn的含量,给出了Mg、Fe、Cu、Pb、Mn最佳测定条件及线性范围,在测定中对样品中的干扰因素进行了综合考虑.方法具有很好的灵敏度和重现性,步骤简单、操作容易、干扰少.测定样品Mg、Fe、Cu、Pb、Mn含量的相对标准偏差均小于1.0%（n=10）.标准加入回收率均在97.0%-101.5%（n=6）范围内.适用于电池锌粉中Mg、Fe、Cu、Pb、Mn的含量控制分析和样品系统分析.     

健骨胶囊中微量元素对实验大鼠股骨的影响

通过对健骨胶囊及实验大鼠股骨中的微量元素铜、锌、铁、锰的分析，阐述了健骨胶囊中微量元素对实验大鼠股骨中的微量元素铜、锌、铁、锰的影响以及骨质疏松症的改善，具有重要的营养学、药理功效学作用。