牛磺酸对应激大鼠第二信使及心肌离子含量变化的影响

目的：探索牛磺酸对应激性心肌损伤的保护机制。方法：以异丙肾上腺素诱导的大鼠应激为模型，测定心肌及血浆中第二信使ｃＡＭＰ、ｃＧＭＰ、Ｃａ２＋及心肌细胞中Ｎａ、Ｋ、Ｍｎ、Ｚｎ、Ｍｇ、Ｆｅ、Ｃｕ、Ｃｏ、Ｃｒ离子和心肌线粒体中Ｎａ、Ｋ、Ｍｎ、Ｚｎ、Ｍｇ、Ｆｅ、Ｃｕ离子含量的变化。结果：ＩＳＯ组心肌及血浆中ｃＡＭＰ、ｃＧＭＰ含量，心肌细胞中Ｃａ、Ｎａ、Ｋ离子及心肌线粒体中的Ｃａ离子含量显著高于对照组及牛磺酸组；而牛磺酸组心肌细胞中Ｍｎ、Ｚｎ、Ｍｇ、Ｆｅ、Ｃｕ及线粒体中Ｆｅ、Ｚｎ离子含量显著高于ＩＳＯ组及对照组。三组心肌组织中Ｃｏ、Ｃｒ含量未见显著差异。结论：牛磺酸可显著抑制应激大鼠第二信使水平的升高及心肌细胞和线粒体中的钙超载现象，并使心肌细胞中的Ｍｎ、Ｚｎ、Ｍｇ、Ｆｅ、Ｃｕ及线粒体中Ｆｅ、Ｚｎ离子维持在较高水平，依此来减轻大鼠的应激性心肌损伤。     

苦丁茶的微量元素测定及其保健功能初探

用原子吸收分光光度计测定苦丁茶中Ｚｎ、Ｃｕ、Ｍｎ、Ｆｅ、Ｃａ、Ｍｇ、Ｓｒ、Ｃｏ、Ｌｉ、Ｒｂ、Ｋ、Ｎｉ的含量，发现其中Ｚｎ、Ｍｎ、Ｃａ、Ｍｇ、Ｋ、Ｒｂ、Ｆｅ、Ｃｏ的含量要比其他茶的含量高得多，并根据测定结果，初步讨论苦丁茶的保健价值。     

隐性血栓患者头发、全血及体外人工血栓中的无机微量元素的研究

对隐性血栓患者的头发中的Ｆｅ、Ｃｕ、Ｚｎ、Ｍｎ、Ｃａ、Ｍｇ、Ｋ、Ｎａ等进行测定，并对全血及体外人工血栓中的Ｚｎ、Ｃａ、Ｓｒ、Ｆｅ、Ｐ等进行测定。隐性血栓患者头发中的Ｚｎ显著地高于对照组，而Ｃｕ又显著地低于对照组，Ｚｎ／Ｃｕ同样显著高于对照组。隐性血栓患者全血和体外人工血栓中的Ｃａ、Ｆｅ、Ｐ、Ｚｎ、Ｓｒ均高于对照组。通过ｔ检验发现，Ｚｎ与血栓关系密切（Ｐ＜０．０５）。因而可以认为头发中Ｚｎ／Ｃｕ增高，是隐性血栓存在的指标。     

饮酒对生命元素的影响及与血压的关系

采用原子吸收和火焰光谱分析法，检测了饮酒者和不饮酒者血清微量元素Ｚｎ、Ｃｕ、Ｆｅ和常量元素Ｃａ、Ｍｇ、Ｋ、Ｎａ含量。结果显示饮酒者Ｚｎ、Ｆｅ、Ｍｇ及Ｚｎ／Ｃｕ、Ｎａ／Ｋ比值明显高于不饮酒组，而Ｋ、Ｃａ／Ｍｇ则不低于不饮酒组。Ｚｎ／Ｃｕ与每次饮酒量及Ｚｎ、Ｍｇ、Ｎａ与饮酒时间呈显著正相关，而Ｃａ／Ｍｇ与饮酒时间呈显著负相关。本研究提示，饮酒者血压升高可能与体内元素代谢失调有关。     

仓颉菊的微量元素含量与功用

用原子吸收光谱仪测定了河南虞城县产仓颉菊中的Ｃｕ、Ｃｄ、Ｐｂ、Ｚｎ、Ｃａ、Ｎｉ、Ｃｏ、Ｍｎ、Ｍｇ、Ｃｒ、Ｆｅ的含量,并把它与河南地道药材怀菊中的相应元素含量进行了对比,发现仓颉菊中富含多种人体必需的微量元素,其中Ｚｎ、Ｃｕ、Ｆｅ的含量高于怀菊,Ｚｎ／Ｃｕ比值则低于怀菊     

猕猴桃属8种植物根部必需元素的含量测定

采用等离子体发射光谱法测定了猕猴桃属８种植物根部中必需元素：Ｍｇ、Ｐ、Ｃａ、Ｚｎ、Ｆｅ、Ｃｕ、Ｍｏ、Ｎｉ、Ｃｒ、Ｍｎ、Ｃｏ的含量,结果表明Ｐ、Ｃａ、Ｍｇ、Ｚｎ、Ｆｅ含量较高,Ｍｏ、Ｍｎ次之,Ｎｉ、Ｃｕ、Ｃｒ、Ｃｏ含量较低     

锡焊作业者发中微量元素的测定

锡焊作业者发中微量元素的测定孙书芹，徐红娟，王峰清，李慧敏我们对２５名锡焊工和２８名对照组的发样进行了Ｐｂ、Ｃｄ、Ａｓ、Ｓｎ、Ｃｕ、Ｚｎ、Ｆｅ、Ｍｎ、Ｃｒ、Ｃｏ、Ｓｒ、Ｍｏ、Ｎｉ、Ｃａ、Ｍｇ含量的测定。一、对象与方法胜利油田某汽车修理厂水箱修理锡焊车...     

大黄挥发油中金属元素分析

对大黄挥发油中９种金属元素进行了分析测定，结果表明大黄挥发油中含有Ｎａ、Ｋ、Ｃａ、Ｍｇ、Ｍｎ、Ｆｅ、Ｃｕ、Ｚｎ８种金属元素，以Ｃａ、Ｍｎ含量较高。Ｐｂ元素含量在检测限以下     

安徽农民膳食中无机元素全年摄入量调查

对歙县、庐江、凤阳、利辛四县部分农户的Ｋ、Ｎａ、Ｃａ、Ｍｇ、Ｐ、Ｆｅ、Ｚｎ、Ｃｕ、Ｍｎ９种无机元素摄入量进行为期一年的调查，显示Ｋ、Ｃａ、Ｍｇ、Ｚｎ摄入量不足，Ｃａ尤为明显。Ｃａ、Ｚｎ、Ｃｕ、Ｆｅ、Ｍｎ的食物来源以植物性食物为主，吸收率低，应适当增加Ｃａ及微量元素含量高且易吸收的动物性食物的摄取量。江淮地区钠摄入量过高，应降低食盐的摄取量。     

微山湖鱼虾蟹鳖螺元素含量调查

微山湖鱼虾蟹鳖螺元素含量调查马龙江，孙艺，苏政，史可江，刘钧山东省济宁市卫生防疫站（济宁２７２１４５）ＡｂｓｔｒａｃｔＴｈｅｃｏｎｔｅｎｔｏｆ１４ｍｉｃｒｏｌｅｍｅｎｔｓ（Ｋ，Ｎａ，Ｃａ，Ｍｇ，Ｆｅ，Ｍｎ，Ｚｎ，Ｃｕ，Ｃｒ，Ｍｏ，Ｐ，Ｓｅ，Ｆ，Ｃｏ）...     

几种药食两用野菜中16种元素的含量测评

采用微波消解法处理马齿苋、苋菜和苦菜样品,电感耦合等离子体发射光谱(ICP-AES)测定其中K、Na、Ca、Mg、P、Sr、Fe、Mn、Zn、Cu、Co、Cr、Al、Ba、Ni和Cd 16种常量和微量元素的含量。16种元素的检出限为0.00003~0.00917μg/ml,回收率90.00%~107.85%,相对标准偏差(RSD)均小于5.0%。结果显示,马齿苋、苋菜和苦菜中除含有人体必需的常量元素K、Na、Mg、Ca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、Cd、Ba等。     

Evaluation of qualitative properties of amaranth (Amaranthus)

The work contains results of determination of protein, fat, carbohydrates, water, ash, energy value, B group vitamins (B1, B2, PP, B6) and minerals (Ca, P, Mg, Fe, Na, K, Cu, Mn, Zn, Co, Ni, Cr, Cd, Pb) in three products of amaranth. The nutrients components were determined by general approved analytical methods. Vitamins group B were determined using microbiological methods. Minerals like Ca, Mg, Fe, Na, K, Cu, Mn, Zn, Co, Ni, Cr, Cd and Pb were determined using the flame AAS method. Phosphorus was determined spectrophotometrically as phosphates with ammonium molybdate. Mean percentage content of protein, fat, caborhydrates, water and ash in products of amaranth examined (seeds, meal, expanded seeds "popping") were: 13.5-14.4; 7.1-7.6; 63.8-71.7; 3.0-12.3; 3.1-3.4 respectively; there energy value expressed in Kcal/100 g were 373-412. Vitamins content in products of amaranth (mg/100 g) were: 0.019-0.029 thiamin; 0.100-0.143 riboflavin; 1.02-1.20 niacinamide and 0.563-0.615 pyridoxin. The levels (mg/100 g) of minerals were as follow: 204-223 Ca; 712-792 P; 8.3-9.7 Fe; 200-235 Mg; 2.9-3.1 Zn; 1.03-1.38 Cu; 3.78-4.54 Mn; 6.30-8.42 Na; 318-337 K; 0.040-0.055 Cr; 0.185-0.292 Ni and 0.045-0.051 Co. Mean contents of cadmium ranged 5-9 micrograms/100 g and lead 27-35 micrograms/100 g in examined products of amaranth.     

健康成人血清铜、铁、锌、镉、铅、锰、铬、钙、镁、钾含量的调查研究

应用原子吸收光谱分析法,测定了在南京从事不同作业的360名健康成人血清中Cu、Fe、Zn、Cd、Pb、Mn、Cr、Ca、Mg、K 10种元素的含量,经分组统计处理,探讨了不同工种、性别、年龄及工龄与血清元素水平的关系。结果表明,不同工种间血清Cu、Fe、Zn、Cr、Mn、Pb、Ca、Mg、K含量均有显著性差异;不同年龄段血清Cu、Zn、Cd、Mn、Pb、Mg含量有显著差异;女性血清Cu、Zn、Ca、K含量高于男性,而血清Cd低于男性;不同工龄间血清Cu、Fe、Zn、Cd、Cr、Pb、Mg含量有显著性差异。     

Determination of mineral contents of Turkish herbal tea (Salvia aucheri var. canescens) at different infusion periods

Inductively coupled plasma atomic emission spectrometry has been used for the determination of contents of major and minor elements in Salvia aucheri var. canescens (sage) and its infusions for different intervals. Twenty-five elements (Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, Ln, K, Li, Mg, Mn, Na, Ni, P, Pb, S, Sr, Ti,V, and Zn) were detected in both S. aucheri and its infusions. The ranges of mineral levels varied from Cd (1.6668 mg/kg) to K (13,570 mg/kg) and Ni (0.05273 mg/kg) to K (196.25 mg/kg) in the herb and its infusions, respectively. The levels of K, Ca, Na, Mg, and S in all infusions in this work were higher than those of the other elements. However, Al, Ba, Ca, Cd, Co, Cu, Fe, Li, K, Mg, Na, Ni, P, Pb, Sr, Ti, and Zn contents were high in the first period of infusion. As a result, the first period of infusion may be proposed as the optimum infusion time because of nutritional properties. These results may be useful for the evaluation of dietary information.     

ICP-OES和ICP-MS测定黄金茶中26种矿质元素含量

收集了2种不同产地的黄金茶样品,经过微波消解或密封消解后,采用电感耦合等离子体发射光谱法(ICP—OES)和电感耦合等离子体质谱法(ICP—MS)测定了其中Al,As,B,Ba,Ca,Cd,Co,Cr,Cs,Cu,Fe,K,Mg,Mn,Mo,Na,Ni,P,Pb,Rb,S,Sb,Se,Sr,V和Zn等26种矿质元素的含量,并用生物标准参考物质灌木枝叶组合样(GBW07603)评价分析了方法的准确度。研究结果表明:黄金茶中人体必需宏量元素K,Na,Ca,Mg,S,P和人体必需微量元素Zn,Cu,Fe,Mn等含量十分丰富,而有害元素Pb,Cd,As,Sb等含量极低。2种不同产地的黄金茶中一些元素的含量存在明显的差异,可能与地壳中化学元素分布的不均一性等因素有关。     

野生蔬菜大叶芹中14种无机元素的测定

目的通过检测野生蔬菜大叶芹中无机元素，了解其无机元素的含量情况。方法采用火焰原子吸收光谱法、石墨炉原子吸收光谱法和化学分析法，结合使用基体改进剂技术，依据国家标准进行测定。结果大叶芹中K、Na、Ca、Mg、Fe、Mn、Cu、Zn、Pb、Cr、Co、Ni、As等人体必需无机元素的含量分别为930、247、1270、894、187．7、9．4、9．0、15．80、〈0．10、0．89、〈0．10、〈0．50、〈0，10mg／kg，有害元素Cd含量为0．04mg／kg。结论野生蔬菜大叶芹中K、Na、Ca、Mg、Zn等人体必需的无机元素含量丰富，有较高的开发利用价值。同时也检测出有害元素Cd，说明此种野生山菜已受到了环境或土壤的污染。     

Heavy Metals in Aquatic Macrophytes from Two Small Rivers Polluted by Urban,Agricultural and Textile Industry Sewages SW Poland

This article presents the results from a study of the comparison of 2 lowland rivers: the Olobok and the Pilawa in southwest Poland polluted by urban, agricultural, and textile industry sewages. pH and concentrations of Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Ni, Pb, Zn, nitrate, nitrite, ammonia, phosphate, and sulfate were measured in water samples and concentrations of Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, N, Na, Ni, P, Pb, S, and Zn were measured in stream bottom sediments and in the aquatic macrophytes Elodea canadensis, Callitriche verna, Potamogeton crispus, Potamogeton natans, and Ceratophyllum demersum from the river Olobok and Elodea canadensis, Polygonum amphibium, Potamogeton crispus, and Veronica beccabunga from the river Pilawa. The matrix of concentrations of 16 elements in 27 plant samples of 7 species from 15 sampling sites of 2 rivers and concentrations of 15 elements and pH in water samples and 16 elements and pH in bottom sediment samples of these sites was submitted to numerical classification, which revealed that sampling sites from the rivers were differentiated by the value of factor 1 of principal component analysis (PCA), which was related to the pH of water, Ca, Cu, Mg, Mn, and Ni in water and Cd, Cr, Cu, Fe, K, Mg, Na, Ni, P, and S in bottom sediments. More polluted parts of both rivers were differentiated from less polluted parts by the value of factor 2 of PCA, which was related to Pb, Zn, and sulfates in water and Ca and Zn in bottom sediments. Macrophytes from the Olobok and Pilawa rivers were differentiated by the value of factor 1, which was related to Ca, Co, Cr, Cu, Fe, Mg, Ni, N, Na, Pb, and S. Groups of macrophytes of more and less polluted parts of both rivers differed by the value of factor 2, which was related to P, K, and Mn. Downstream of the sewage outputs in both rivers, a significantly increased level of pollution occurs with elements correlated with factor 1: Among others were Cu and Cr, typical for the textile industry along the river Pilawa, and among others were Mn and Ni, typical for the urban and agricultural activities in the river Olobok.     

发育期胎儿组织中元素的含量分布和意义

对１１８例１６～２４、２５～３２和大于３２ｗｋ的正常胎儿组织颞叶、额叶、顶叶、枕叶、小脑、脑干、延髓、海马，肝脏和股骨肌，母体血清和胎盘用等离子发射光谱（ＩＣＰ）法测定了锌、铁、铜、钙、镁、镉、铬、铝、铅、钠、钾和磷的含量。结果表明，发育期间胎儿组织中元素的含量分布与器官的发育及功能的成熟有关。     

Element differences and evaluation of the dietary intake from farmed oysters and mussels collected at different sites along the Croatian coast of the Adriatic Sea

Concentrations of the macroelements Ca, Mg, K and Na, microelements Cr, Cu, Fe, Mn and Zn and toxic metals As, Cd, Hg and Pb were determined in oysters and mussels collected at farming sites in the northern, central and south Adriatic Sea. Mean concentrations in oysters were (mg kg⁻¹): As 4.51, Ca 1551, Cd 1.44, Cu 53.6, Cr 0.23, Fe 45.9, Hg 0.047, K 2476, Mg 895, Mn 2.80, Na 7148, Pb 0.52, Zn 675. Mean values in mussels were (mg kg⁻¹): As 4.71, Ca 601, Cd 0.37, Cu 1.91, Cr 0.29, Fe 49.6, Hg 0.026, K 2246, Mg 1043, Mn 2.49, Na 7992, Pb 0.58, Zn 28.8. Significant differences in the concentrations of toxic metals and elements were found in oysters and mussels among farming sites. Obtained Cd, Hg and Pb concentration in oysters and mussels were lower than the limit levels set by the European Community. However, Cd concentration exceeded the limit level of 1 mg kg⁻¹ in oysters from all locations except Lim Bay. The estimated daily intakes (EDIs) indicate that oysters are a good source of Ca, Cu and Zn. The higher Cu and Zn concentrations than the toxicity reference values suggest a risk for consumers if larger quantities of oysters are consumed frequently.