The imported transparent glaze fired at lower temperature was analysed semi - quantitatively by adopting emission spectroscope. the stripping of lead and cadmium from this transparent glaze fired at lower temperature in ceramic product was determined by atomic absorption spectroscope. the effect of chemical composition on the stripping of lead and cadmium was analysed. upon the author s opinion, the overproof lead stripping from the imported transparent glaze fired at lower temperature can only be settled by adopting lead - free glaze instead of adopting low - lead prescription. the author succeeded in developing an excellent lead - free transparent glaze fired at the lower temperature of 1000 1050. the success is based on an inquiry into the feasibility of using such new agents of fusion as li2o and sro in replacement of pbo ; and on a study of the effects of the contents of sio2 , al2o3 , b2o3and other metallic oxides on such performances of glaze as coefficient of linear expansion, fusion temperature and transparency. it is also based on an analysis of coefficient of linear expansion of blank and glaze on an analysis of coefficient of linear expansion of blank and glaze on their correlation ; and on a study of technology for preparing glaze
採用發射光譜儀對進口低溫透明釉進行半定量分析,並用原子吸收光譜儀測定其陶瓷製品的鉛、
鎘的溶出量,分析化學成分對鉛、
鎘溶出量的影響.結果表明,進口低溫透明釉採用低鉛配方不能解決鉛溶出量的超標問題,只有採用無鉛釉才能解決.探討用
氧化鋰和
氧化鍶等新型熔劑完全代替
氧化鉛的工藝,研究釉料中
氧化硅、
氧化鋁、
氧化硼和各種金屬
氧化物的含量,對釉的線膨脹系數、熔融溫度和透明度等性能的影響.分析坯料、釉料的線膨脹系數及其相互關系和釉料制備的工藝,研製出優質的1000 1050低溫無鉛透明釉
The main products are pyro sintered zinc concentrate, zinc oxide direct method, zinc oxide indirect method, zinc sulphate, zinc oxide pharmaceutical grade, basic zinc carbonate, ammonium bifluoride, ammonium fluoride, sodium fluoride, strontium nitrate, lithium nitrate, lithium fluoride, cobalt salt, nickel salt, and etc. among above products, zinc oxide pharmaceutical grade were the first products in hebei province and the quality of zinc oxide pharmaceutical grade was approved by hebei medical bureau reference number : jweizhunzi94di8662
鋅焙砂
氧化鋅硫酸鋅鹽氟化物鋰鹽鍶鹽鎳鹽
鎘鹽鈷鹽等幾大系列產品,其中醫用
氧化鋅填補了河北省內空白,並於1994年被省衛生廳批準為藥用指定產品冀衛藥準字94第8662號。公司十分重視客戶的反映,並有同客戶建立長久合作關系的能力。
The cadmium content in weathering phosphate rock is nearly two times of original phosphate rock, this demonstrates that under the surrounding of oxidization in the surface of the earth, cadmium is oxidized under the action of acidic water solution and is displaced distinctly
白果坪磷礦風化磷礦中的
鎘含量較原生磷礦
鎘含量高近一倍,表明在地表
氧化環境下,
鎘元素在酸性水溶液的作用下被
氧化淋濾發生了明顯遷移。
In 2005, 61 physical and chemical parameters were measured and analysed in sediments. these included particle size, electrochemical potential as highly anoxic sediment with negative potential is related to organic pollution, chemical oxygen demand which indicates organic pollutants, total sulphide inorganic constituents, source of the unpleasant - smelling gas hydrogen sulphide, 15 metals and metalloids aluminium, arsenic, barium, boron, cadmium, chromium, copper, iron, lead, manganese, mercury, nickel, silver, vanadium and zinc, and trace toxic organics pahs and pcbs - 16 compounds and 18 congeners respectively
2005年,沉積物監測包括分析61種物理及化學參數,其中有粒子大小電化學勢有機污染促使沉積物缺
氧,而讓電化學勢呈負數值化學需
氧量顯示有機污染程度總硫化物無機物,是造成難聞氣體硫化氫的主因15種金屬及準金屬鋁砷鋇硼
鎘鉻銅鐵鉛錳汞鎳銀釩及鋅和痕量毒性有機物多環芳烴及多氯聯苯分別為16種復合物及18種同質物。
Sequential determination of cu, pb, fe, cd and ni in bismuth and bismuth oxide by atomic absorption spectrometry
原子吸收法連續測定鉍及
氧化鉍中銅鉛鐵
鎘鎳
" the contactors feature silver cadmium oxide, double break contacts to assure a long electrical life, high weld resistance and excellent interrupting capacity.
這種接觸器採用銀
氧化
鎘材料,雙斷接點,有利於保證較長的電氣壽命、較高的抗焊接性能和傑出的斷開容量。
Cadmium oxide photovoltaic cell
氧化
鎘光生伏打電地
Determination of cadimium in cucumber with four types of sample preparation methods, i. e. digestion using nitric acid and perchloric acid, microwave digestion using nitric acid, digestion using sulfuric acid and hydrogen peroxide and extraction using hydrochloric acid were compared
摘要本文通過比較研究了濕式消解法、微波消解法、硫酸過
氧化氫快速消解發、鹽酸浸提法等四種前處理方法測定黃瓜中
鎘含量。
Methods for chemical analysis of zinc oxide produced by direct process - determination of cadmium oxide content - atomic absorption spectrometry method
直接法
氧化鋅化學分析方法原子吸收光譜法測定
氧化
鎘量
The effect of lycopene on oxidative stress in rats induced by cd
番茄紅素對
鎘損傷大鼠
氧化應激的影響
The results indicate that the amounts of fe oxides influence cd adsorption to natural surface coatings greatly
結果表明,在自然水體生物膜吸附
鎘的過程中,生物膜對
鎘的吸附隨生物膜上鐵
氧化物的含量呈規律性變化。
The adsorption of natural surface coatings, developed in the nanhu lake ( changchun, china ), towards cd was studied to determine the effects of the amounts of fe oxides in surface coatings on cd adsorption and the dynamics and thermodynamic characteristics of cd adsorption
摘要利用長春南湖水培養生物膜,研究自然水體生物膜上鐵
氧化物的含量變化對生物膜吸附
鎘動力學、熱力學的影響。
An experimental study on effects of alpha - lipoic acid and taurine on acute oxidative damage caused by cadmium
硫辛酸和牛磺酸對急性
鎘氧化損傷影響的實驗研究
The advances in the research on cadmium - induced mitochondrial damage have been summarized, such as the membrane potential breakdown, production of ros, oxidative phosphorylation uncouple, electron transfer chain ( etc ) restrain and so on
摘要總結了近年來
鎘對細胞線粒體結構和功能損傷的研究進展,基本闡明其對線粒體的損傷機制,包括膜電位的損傷、活性
氧物質的生成、
氧化磷酸化的解耦聯、電子傳遞鏈的抑制等。
Effects of different cadmium levels on the growth and antioxidant enzymes in brassica campestris l. ssp. chinensis makino
不同
鎘水平對白菜生長及抗
氧化酶活性的影響
Standard guide for silver - cadmium oxide contact material
銀
鎘氧化接觸材料標準指南
Specification for cadmium anodes and cadmium oxide for electroplating
電鍍用
鎘陽極與
氧化
鎘規范
Cadmium contained in the cadmium oxide of a thick film ceramic substrate
厚膜陶瓷基質的
氧化
鎘中所含的
鎘。
Standard guide for determination of sodium and potassium content for silver - cadmium oxide contact materials
氧化銀
鎘接觸材料用鈉和鉀含量的測定標準指南
Phosphate rock and concentrate - determination of cadmium oxide content - flame atomic absorption sepctrometric method
磷礦石和磷精礦中氧化鎘含量的測定火焰原子吸收光譜法