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
5mg. kg - 1 respectively, zn concentration decreases in pileus when other hms were added, cu, pb, cd, concentration increasion in pleurotus ostreatus, the transformation and distribution is higher than single element, cd > zn > cu > pb
菌蓋中鋅隨著銅、鉛、
鎘的加入而減少,表現為拮抗作用;但當其他重金屬元素存在時,平菇吸收富集銅、鉛、
鎘皆表現為協同作用。
Blood will transport it through the rest of the body where it can increase effects by potentiating cadmium that is already present from cadmium - rich food
血液會把它傳輸到身體
的其他部分,隨著含
鎘量高
的食物
的攝取,體內
鎘的含量越高,癥狀就會越明顯。
Determination of cadmium content in traditional chinese medicine preparation of pule ' an tablet by microwave digestion graphite furnace atomic absorption spectrometry
石墨爐原子吸收法測定中藥制劑普樂安片中
鎘的含量
Y11 had good repetitious ability of cadmium adsorption
Y11菌體具有重復吸附
鎘的能力。
The variety of the activity of na + / k + - atpase, ca2 + - atpase and sod by increase calcium concentration in the water, and the effects of cd2 +, estradiol - 17 and ca2 + on the lymphocyte proliferation from blood and head kidney of ctenopharyngodon idellus were also investigated the significance of this paper is that to research the toxicity of cadmium to the fish and to search the mechanism of the cadmium toxicity to the fish. and the protection of calcium on cd2 + toxicity
本論文研究了
鎘對草魚
的毒性作用,比較了在不同鈣濃度條件下,其鰓、肝臟、腦等組織中sod 、 na ~ + k ~ + ? atp酶、 ca ~ ( 2 + ) ? atp酶
的活性變化規律以及
鎘和17 ?雌二醇對草魚血液及頭腎淋巴細胞增殖
的影響,評價
鎘對魚類
的毒害作用,探索
鎘的毒害機理。
Method of determination of cupper, zinc, lead, cadmium in rice for export. atomit absorption spectrophotometer
出口大米中銅鋅鉛
鎘的測定方法.原子吸收分光光度法
Effect of humic acid on ionic form distribution and activity of lead and cadmium in pond sediment
鎘的離子形態分佈及其活性
的影響
Polarographic analysis of cadmium catalysis in soil, foods and vegetables
土壤糧食蔬菜中
鎘的催化極譜分析
Methods for rapid multi - element analysis in the field and their applications. determination of arsenic and cadmium
砷和
鎘的微珠比色測定
On the basis of studying on baiguoping phosphate deposits cadmium geochemical characteristics, the significance of studying on cadmium supergene geochemistry activation course in phosphate rock deposits is discussed
摘要通過對白果坪磷礦床中鎘地球化學特徵的研究,探討了對磷塊巖礦床中鎘的表生地球化學作用過程研究的意義。