原子吸收光谱法测定济南土壤中5种微量元素含量

目的:调查济南地区土壤环境中铜、锌、镁、锰、硒的含量,以提供相应数据.方法:采集济南粮食种植区、蔬菜种植区和居民生活区土壤样品,进行消化处理,采用火焰原子吸收分光光度法检测铜、锌、镁,石墨炉原子吸收分光光度法检测锰,氢化物发生--原子吸收分光光度法检测硒.结果:济南不同来源土样中各元素含量无差别,铜平均含量为24.18...     

硒对大鼠组织中硒、镉、锌、铜、锰含量的影响

本文观察了Ｗｉｓｔａｒ雄性大鼠经口摄入不同浓度的亚硒酸钠液，３周后用原子吸收分光光度法测定肝、肾、脾和睾丸中硒、镉、锌、铜和锰的含量。结果表明：给硒后肝、肾组织中硒的含量随着硒剂量的增加而升高；肝、肾、脾中锌的含量升高，而至１０ｍｇ／Ｌ组锌的含量又下降；肾、脾和睾丸中铜、锰的含量升高，肾、脾中锰含量随硒剂量的增加而降低。     

泉州市蔬菜水果中6种元素含量分析

用火焰原子吸收分光光度法对泉州市的２５种蔬菜，９种水果进行锌、铜、锰、铁、钙、镁６种元素含量测定。测定回收率为９１．２％～１０１．６％。结果，蔬菜中的锌、钙、铁含量显著高于水果。所测的蔬菜、水果，为菠菜中的铁、铜、锌含量最高，其余的镁、锰、钙３种元素含量最高的分别为香蕉、芋头、小白菜     

糖尿病患者血清微量元素的含量分析

应用原子吸收分光光度法测定了51例糖尿病患者及43例正常人群血清中微量元素铬、硒、锌、铜、锰的含量。发现糖尿病患者血清铬、硒、锌、锰的含量明显低于对照组(P<0.01);铜含量明显高于对照组(P<0.01)。结果表明体内微量元素铬、硒、锌、铜、锰的含量与糖尿病具有密切的关系。     

荞麦不同组成部分中金属元素含量及分析

目的：测定荞麦不同组成部分茎、叶、花中金属元素（铜、铁、锌、钙、锶、硒、锰、铅、砷、汞、镉）的含量。方法：原子吸收分光光度法及原子荧光分光光度法。结果：荞麦茎中铜、铁、锌、锶、硒、锰、砷、镉均高于叶和花;荞麦叶中钙、铅、汞明显高于茎和花。结论：荞麦茎、叶、花中铅含量较高均超过国家标准;砷、镉、汞无超标现象。     

圆盖阴石蕨及其水煎剂中微量元素的分析

用原子吸收分光光度法测定了圆盖阴石蕨及其水煎剂中锌、铜、铁、钙、镁、锰、硒、铅的含量 ,并对其水煎剂中的 8种元素溶出率进行了探讨。     

慢性丙型肝炎患者血液微量元素、氧应激水平及与病毒载量的关系

目的 检测慢性丙型肝炎患者血液微量元素和氧应激水平以及评估它们与丙型肝炎病毒(HCV)载量的关系.方法 采用实时荧光定量PCR检测42例未经治疗的丙型肝炎患者血清中HCV-RNA水平.原子吸收分光光度法测定其血清微量元素(铜、铁、锌、硒)浓度.分光光度法测定其血清中丙二醛(MDA)含量、超氧化物歧化酶(SOD)和谷胱甘肽氧化物酶(GPX)活性.结果 慢性丙肝患者血清锌、硒水平明显低于对照组,相反铜的水平明显高于对照组.与对照组比较,慢性丙肝患者血清MDA水平显著增加,SOD和GPX活性显著下降.血液锌、硒、铜以及MDA、SOD、GPX与HCV载量相关.结论 血液锌、硒、铜以及MDA、抗氧化酶SOD和GPX对慢性丙肝感染者有重要影响,这些参数有可能作为HCV感染的生物学标志物.     

贵阳市牛奶中7种微量元素的检测及分析

用原子吸收分光光度法和分子荧光法测定了贵阳市区主要奶牛场袋装消毒鲜奶中铜、锌、铁、锰、硒及铅、砷，提供了该区袋装消毒鲜奶中微量元素的含量，并与全国代表值进行了比较。     

硒镉摄入对大鼠脏器中硒、镉、铜、锌、锰含量的影响

目的：探讨硒镉摄入对大鼠脏器中硒、镉、铜、锌、锰含量的影响。方法：用含5ppm硒、50ppm镉和含5ppm硒＋50ppm镉的水,供3月龄的Wistar雄性大鼠自由饮用,3周后用原子吸收分光光度法测定大鼠肝、肾、脾和睾丸中硒、镉、铜、锌和锰的含量。结果：5ppm硒组大鼠4种组织中硒、铅含量、肝脾组织中锌含量和肾、脾、睾丸组织中铜含量均高于对照组;50ppm镉组大鼠4种组织中镉的含量、肾脾组织中硒的含量和肝脾组织中铜锌含量均高于对照组;经口同时摄入硒、镉时大鼠4种脏器组织中硒的含量明显低于硒组,4种脏器组织中镉的含量明显高于硒组,肝脏组织中锌的含量显著低于镉组,脾脏组织中锌的含量显著低于硒组,肾、脾、睾丸组织中铜的含量低于硒组,肾、睾丸组织中锰的含量低于镉组。     

贵阳市主要产菜区7种蔬菜的锌铜测定及分析

对贵阳市主要产菜区７种蔬菜进行采样分析，用原子吸收分光光度法测定了锌铜，提供了该区７种蔬菜的锌铜含量。     

原子吸收光谱法测定水果中10种元素含量及分布

目的调查水果中锌、铜、钾、钙、镁、锰、铅、镉、铬和硒10种元素含量分布情况。方法采用湿法消解水果样品,火焰原子吸收光谱法检测水果中的锌、铜、钾、钙、镁和锰的含量,石墨炉原子吸收光谱法检测铅、镉、铬和硒的含量。结果 10种元素在水果中各部位的分布有比较大的差异。葡萄、干枣和木瓜中铅含量接近于污染物浓度限量,但没有超过标准。国光苹果、梨、干枣和圣女果中铬的含量都超标。国光苹果、香蕉、梨、干枣、木瓜和柚子中均不同程度检出硒,但没有超过污染物浓度限量。葡萄和干枣中的铜含量超过标准。锌的含量没有超过标准。木瓜中钙含量最高,干枣中镁和锰含量最高。干枣、柚子和圣水果中含钾较高。结论水果果籽中各种元素含量最高,果肉中含量最低。果皮中各种元素含量比果肉中高。     

Determination of Urinary Trace Elements (Arsenic,Copper, Cadmium,Manganese, Lead,Zinc, Selenium) in Patients with Blackfoot Disease

To determine the relationship of arsenic, copper, cadmium, manganese, lead, zinc and selenium to Blackfoot disease (BFD, a peripheral vascular disorder endemic to areas of Taiwan, which has been linked to arsenic in drinking water) the authors measured the amount of these substances in urine from BFD patients, using atomic absorption spectrometry. Results indicate significantly higher amounts of urinary arsenic, copper, cadmium, manganese, and lead for BFD patients than for normal controls, also significantly lower urinary zinc and selenium.     

Determination of urinary trace elements (arsenic, copper, cadmium, manganese, lead, zinc, selenium) in patients with Blackfoot disease

To determine the relationship of arsenic, copper, cadmium, manganese, lead, zinc and selenium to Blackfoot disease (BFD, a peripheral vascular disorder endemic to areas of Taiwan, which has been linked to arsenic in drinking water) the authors measured the amount of these substances in urine from BFD patients, using atomic absorption spectrometry. Results indicate significantly higher amounts of urinary arsenic, copper, cadmium, manganese, and lead for BFD patients than for normal controls, also significantly lower urinary zinc and selenium.     

Determination of elements hazardous to health in vegetables grown in the Siedlece district

In the years 1986-1987 the content of iron, manganese, zinc, copper, nickel, lead and cadmium was determined by the atomic absorption spectrometry method in vegetables grown by gardeners in Wegrów, Soko?ów Podlaski and Siedlce. These elements were measured in cabbages, tomatoes, carrots, parsley, celery (root and leaves), red beet and potatoes. The content of lead in these vegetables was from 0.0 to 0.596 mg/kg, and that of cadmium was from 0.002 to 0.184 mg/kg (fresh mass). The level of cadmium in many samples of vegetables exceeded to limit permitted by the Polish Ministry of Health. Lead level in a sample of parsley leaves was two times above the permitted value.     

济南市区成人铜和锰摄人量及血清铜和锰含量参考值范围

目的研究济南市区成人每日人均铜(Cu)、锰(Mn)摄入量并探讨血清铜(SCu)和血清锰(SMn)含量的参考值范围。方法于2007年8月—2008年1月,以1005位济南市区健康成人作为调查对象,采用七天膳食摄入表法进行每人每日Cu和Mn摄入量调查;采用微波消解-原子吸收分光光度法检测其SCu和SMn含量。结果济南市区成人每日人均Cu摄入量为1.78mg,Mn摄入量为4.21mg。男性Cu摄入量高于女性(P<0.05)。年龄因素对人均每日Cu和Mn摄入量没有显著影响。济南市区成人SCu含量为(0.91±0.26)mg/L,参考值范围(P2.5～P97.5)为0.38～1.37mg/L;SMn含量为(7.04±3.19)μg/L,参考值范围(P2.5～P97.5)为3.54～15.56μg/L。性别、年龄因素对SMn含量没有显著影响。女性SCu含量高于男性(P<0.05)。SCu含量随年龄增长而增加(r=0.14,P<0.01),男性略明显(r=0.18,P<0.01)。结论本调查可以初步确定济南市区成人SCu和SMn的参考值范围。济南市区成人人均每日Cu摄入量低于我国成人Cu适宜摄入量(AI,2mg/d),而M...     

医学生头发中铜、锌、铁、锰、钙、铅含量检测及分析

目的 了解在校医学生的饮食结构和微量元素的水平,培养大学生良好的饮食习惯和生活方式.方法 用原子吸收光谱法测定130名在校大学生头发中铜、锌、铁、锰、钙、镁、铅的含量,同时测定学生食堂部分粮食、蔬菜中微量元素的含量.结果 所测元素水平与国内文献报道的基本一致;男生头发铁含量显著高于女生,女生头发锰含量显著高于男生;其他元素未见明显的性别差异.结论 大学生头发中的微量元素存在着性别差异,此特征对今后的微量元素与健康的研究具有重要的参考价值与指导意义.     

4种药食兼用野菜的微量元素含量分析

用火焰原子吸收光谱法测定了石家庄地区茵陈、地肤、车前和苦菜中Fe、Mn、Cu、Zn等微量元素的含量,结果表明:4种野菜中的Fe、Zn含量均较高,Cu/Zn比值较低,具有很好的食用和医疗价值,尤其是茵陈4种微量元素含量均较丰富,具有很高的开发利用价值。     

Autopsy tissue trace elements in 8 long-term parenteral nutrition patients who received the current U.S. Food and Drug Administration formulation

Iron, zinc, copper, manganese, chromium, and selenium levels were measured in autopsy tissues of 8 people with short bowel syndrome who received home parenteral nutrition (HPN) and the U.S. Food and Drug Administration (FDA)-approved trace element formulation for an average duration of 14 years (range, 2-21). Iron, zinc, copper, manganese and selenium were measured by inductively coupled plasma methods; chromium, by graphite furnace atomic absorption spectrometry. The levels in the 4 tissues studied, heart, skeletal muscle, liver, and kidney, were compared with levels in 45 controls who died without chronic gastrointestinal disorders. Results showed normal HPN patient values for iron and selenium, mild elevation of zinc, and major elevations of copper, manganese, and chromium. The implications of these results for trace-element supplements in long-term PN adult patients are discussed, and the need for reformulation of commercially available multi-trace element products in the United States is stressed.     

Changes in the mineral and trace element contents of cereals,fruits and vegetables in Finland

The contents of calcium, potassium, magnesium, phosphorous, aluminium, cobalt, copper, iron, manganese, nickel, selenium, zinc, cadmium and lead in cereal products, fruits and vegetables were analysed and the results were compared with those obtained 30 years previously in food samples from Finland. There were significant changes in the trace elements. In most cases trace elements contents are now lower than before. Only the selenium content of foods had clearly increased in Finland, through the use of selenium-supplemented fertilizers. There was a change in average mineral element content only for potassium, whose content was significantly lower than in the middle of the 1970s. We found that trace element density in vegetable foods has decreased over the past three decades. Per capita daily intakes of mineral elements in the 2000s were lower than in the 1970s, although the consumption of fruits and vegetables has increased since 1970s.     

Serum levels of selenium, calcium, copper magnesium, manganese and zinc in various human diseases.

Serum selenium as well as serum zinc, copper, magnesium, calcium and manganese were investigated in a control group of adult males and in 11 groups of patients in various disease states. Not only the change of each trace element but also the possible association between elements was studied in the various groups. All patients were fasting when sampled and studied only after the acute phase of the disease was corrected. Trace metal determinations were performed by atomic absorption spectrophometry (Mg, Ca, Cu, Zn) and by neutron activation analysis (Se, Mn). All patients showed low serum zinc when compared to controls. Cirrhotic patients had a low serum selenium level as well as low calcium, magnesium and zinc. Emphysemia and cancer patients had an elevated serum copper concentration while copper and manganese levels were elevated in congestive heart failure, infection and pschoses. To our knowledge this is the first time low serum selenium values have been demonstrated to be associated with the low serum zinc, calcium and magnesium levels found in cirrhotic patients.