查询词典 cadmium

The compound pollution sign exists in the soil between total cadmium, total hydrargyrum, total plumbum and chrome. The prominent correlation exists in total cadmium and total plumbum. The correlation coefficient is very lower between heavy metals in the vegetable body. The correlation coefficient is very prominent between cadmium and plumbum in the vegetable body. The correlation between vegetable and soils heavy metal content of the cadmium is very prominent and others is very lower.

土壤中全镉、全汞、全铅和全铬这四种重金属之间存在着复合污染的迹象，其中全镉和全铅存在极显著的相关性；植物体内重金属之间的相关系数很低，只有镉和铅具有显著相关性；植物和土壤重金属含量的相关关系只有镉的含量呈显著关系，其它相关性较低。

The main products are: calcium sulfate / calcium nitrate / calcium carbonate / copper sulfate / chloride, copper / zinc sulfate / nitric acid zinc / zinc chloride / potassium sulfate / potassium chloride / potassium bromide / potassium aluminum sulfate / potassium dihydrogen phosphate / 2 of potassium hydrogen phosphate / sodium bromide / sodium chloride / sodium nitrate / sodium fluoride / trisodium phosphate / sodium dihydrogen phosphate / disodium hydrogen phosphate / crystallization of sodium carbonate / anhydrous sodium carbonate / aluminum sulfate / nitrate aluminum / crystallization of aluminum chloride / aluminum hydroxide / nitrate Fe / hydrobromide / oxalic acid / boric acid / citric acid / barium chloride / Azone / magnesium sulfate / magnesium nitrate / magnesium chloride / ammonium chloride / ammonium sulfate / Bifluoride ammonium / ammonium aluminum sulfate / ferrous ammonium sulfate / ammonium dihydrogen phosphate / diammonium hydrogen phosphate / bromide / tetrabutylammonium bromide / chloride, nickel / nickel nitrate / sulfate nickel / cadmium chloride / cadmium sulfate / nitrate Cadmium / Cadmium Carbonate / Strontium / strontium nitrate / sulfuric acid manganese / manganese chloride / 50% manganese nitrate solution / stannous chloride / zinc chloride, such as crystallization of the four largest packing of chemical reagents AR and CP level.

主要产品有：硫酸钙/硝酸钙/碳酸钙/硫酸铜/氯化铜/硫酸锌/硝酸锌/氯化锌/硫酸钾/氯化钾/溴化钾/硫酸铝钾/磷酸二氢钾/磷酸氢二钾/溴化钠/氯化钠/硝酸钠/氟化钠/磷酸三钠/磷酸二氢钠/磷酸氢二钠/结晶碳酸钠/无水碳酸钠/硫酸铝/硝酸铝/结晶三氯化铝/氢氧化铝/硝酸铁/氢溴酸/草酸/硼酸/柠檬酸/氯化钡/氮酮/硫酸镁/硝酸镁/氯化镁/氯化铵/硫酸铵/氟化氢铵/硫酸铝铵/硫酸亚铁铵/磷酸二氢铵/磷酸氢二铵/溴化铵/四丁基溴化铵/氯化镍/硝酸镍/硫酸镍/氯化镉/硫酸镉/硝酸镉/碳酸镉/碳酸锶/硝酸锶/硫酸锰/氯化锰/50%硝酸锰溶液/氯化亚锡/结晶四氯化锌等大包装化学试剂的AR和CP级别。

Furthermore, the analysis of X- ray diffraction diagram indicated that cadmium ion was transformed into cadmium sulfides by H strain. Also, we found that the removal for cadmium was dependent on the growth stationary phase of H stain through determining the removal rate for cadmium, the growing curve of cell and the activity of cysteine desulfhydrase.

通过X射线衍射光谱分析，H菌株对镉离子的转化产物为硫化镉，通过测定镉的去除与细菌生长曲线及半胱氨酸脱巯基酶的活性，表明镉的去除与菌体的生长稳定期相关。

This paper describes some advances made in the study of the distribution and modes of occurrence of cadmium, and sums up the distribution and geochemical investigation of cadmium resources in China. It is suggested that we should strengthen the study of abnormal enrichment mechanism of cadmium and the release and circulation of cadmium in supergene geochemical process, which adversely affect the environment.

本文介绍了有关镉的分布和赋存状态的一些研究进展，总结了我国镉矿资源的分布及特点和地球化学研究现状，提出应加强镉的超常富集机制、铅锌矿床表生地球化学过程中镉的释放及其对环境的影响方面的研究。

Of cadmium had some promotion on the growth of D. caryophyllus and the germination energy in seeds treated by 5.0 mg/L cadmium was 15.83% higher than control. The high concn. of cadmium had suppression to the growth of D. caryophyllus with greater suppression to bud than to root.

结果］低浓度的镉对石竹的生长有促进作用，其中镉为5.0 mg/L时的发芽势比对照高15.83%；高浓度的镉抑制其生长，对根的抑制作用大于芽。

Along with the process of treating time and the increase of the cadmium concn., the chlorophyll content of D. caryophyllus was reduced. When D. caryophyllus leaves were treated by 5.0 mg/L cadmium for 20 d, the cadmium concn. showed a negative correlation to time, with correlation coefficient of-0.789. In the same treating time, the cadmium concn. showed significant negative correlation with chlorophyll content.

随着处理时间的推移和镉浓度的增加，石竹叶绿素含量在减小，镉为5.0 mg/L处理20 d时，镉浓度与时间相关系数为-0.789；在同一处理时间内，镉浓度与叶绿素均呈显著负相关。

The results showed that the cadmium pollution increases the contents of total protein and globulin,and decreases the ratio of albumin to globulin.The effect of cadmium on albumin is not statistically significant.The threshold of effect of cadmium on sero proteins of Tilapia mossambica is 0 005mg/L.

试验结果表明，镉能升高血清总蛋白、球蛋白含量，降低白蛋白／球蛋白比值，但对血清白蛋白含量没有影响；镉对血清球蛋白各组分的影响有其特异性；对莫桑比克罗非鱼血清球蛋白成分产生作用的镉浓度阈值为0.005mg／L。

The results show that 42.86% topsoil samples are polluted by Cadmium, soil synthesis pollution index is moderate, Cadmium pollution degree of topsoil correlate with the environment of sampling sites. The results also show that exchangeable Cd, carbonate-bound Cd, organic-bound Cd and residual Cd are found in all soil samples except for Fe-Mn oxide-bound Cd. Furthermore, the concentration of exchangeable Cd and carbonate-bound Cd, both which have high biological validity, is high. Humus has a certain correlation with exchangeable Cd, organic-bound Cd and residual Cd, and has no obvious correlation with other chemical speciations. Any chemical speciation of Cd has no obvious correlation with pH and total Fe of soil samples. Cadmium in topsoil can be eluviated by acid solution, the quantity of Cadmium eluviated by redistilled water is little. With the rise of pH of eluviating solution, eluviated Cadmium quantity decrease. For the same soil sample, the lower pH value of eluviating solution is, the more fast the Cadmium is eluviated, and the more thequantity of Cadmium is eluviated.

研究结果表明：成都市表生土壤样中有42.86%受镉污染，镉综合污染水平达中度污染，成都市表生土壤镉污染程度与采样点周围环境表现出一定的相关性；除铁锰氧化物结合态镉在部分土壤样中未检出外，所有土壤样均含有可交换态镉、碳酸盐结合态镉、有机结合态镉、残留态镉，且生物有效性较高的可交换态镉和碳酸盐结合态镉占总镉量比例较高；成都市表生土壤中的腐殖质与可交换态镉、有机结合态镉、残留态镉有一定相关性，与碳酸盐结合态镉、铁锰氧化物结合态镉相关性不显著；各形态镉与土壤pH值和全铁的相关性均不显著；土壤中的镉可被酸溶液淋出，重蒸馏水淋出镉量十分微小；随着淋滤液pH值的升高，土壤样的镉淋出量下降，且0～5小时时段的镉淋出量占镉总淋出量比例下降，5～30小时时段的镉淋出量占镉总淋出量的比例上升，对同一土壤样而言，酸度大的淋滤液比酸度小的淋滤液淋出镉速度更快，淋出镉量更大。

Environmental chemical action of Cadmium in topsoil in Chengdu has been studied in this paper, including the Cadmium pollution survey of topsoil in Chengdu, the chemical speciation research of Cadmium in topsoil, the research of correlation between soil character and chemical speciation of Cadmium and eluviating experiment research.

本文针对成都市表生土壤中镉的环境化学行为进行研究，包括以下研究内容：成都市表生土壤的镉污染状况调查；表生土壤中镉的化学形态研究；土壤性状同土壤镉赋存形态的关系研究；土壤淋滤实验研究。

Products to sponge cadmium, cadmium oxide, cadmium nitrate, sulphate cadmium, nickel foam, metal cadmium powder as the main products of the coexistence of a variety of operations, monthly production reached: 200 tons of cadmium oxide, cadmium off more than 50 tons, cadmium powder 30 Tons, 300 tons of nitric acid cadmium, nickel foam 12,000 square meters, and so on, the annual turnover to reach 36 million.

产品以海绵镉、氧化镉、硝酸镉、硫酸镉、发泡镍、金属镉粉为主要产品的多种经营方式并存，月产量达到：氧化镉200吨、海面镉50多吨、镉粉30多吨、硝酸镉300吨、发泡镍12000平方米等等，年营业以达到3600万。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。