【摘 要】
：
A new method for the determination of utratrace silver(I) by near field thermal lens spectrometry has been developed. This method is based on the silver(I) cat
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
A new method for the determination of utratrace silver(I) by near field thermal lens spectrometry has been developed. This method is based on the silver(I) catalyzed discoloring reaction of bromocresol green oxidized by sodium persulphate in the presence of a, a-bipy as activator and Triton X-100 as sensitizer. The linear range of this method is 0～1.6 ng穖L-1 of silver. The detection limit is 2?0-2 ng穖L-1. The method has been applied to the determination of silver in lead power and photographic paper with satisfactory results.
This method is based on the silver (I) catalyzed discoloring reaction of bromocresol green oxidized by sodium persulphate in the presence of a, a- bipy as activator and Triton X-100 as sensitizer. The linear range of this method is 0 ~ 1.6 ng 穖 L-1 of silver. The detection limit is 2? 0-2 ng 穖 L-1. The method has been applied to the determination of silver in lead power and photographic paper with satisfactory results.
其他文献
一、巧修离合器拉线 拉线一般从手柄附近铁豆根部断开,铁豆很易丢失。修理时,可找4～5毫米钢管或铜管代替铁豆,如自行车用的前闸杆、羽毛球拍杆等,将其按铁豆长度截取一段,在
A novel synthesis of polyfluoroalkyl substituted -butyrolactones from the reaction of polyfluoroalkyl iodides with 4-pentenoic acid initiated with sodium dithio
我国的台湾,海南岛及福建、广东、广西、云南的一部分地区属于湿热带气候。其特点是:温度高(平均气温高于20℃);相对湿度大(平均大于80％);降雨量多,太阳幅射能量强等。此种气
芳香、杂环及脂肪类伯甲酰胺与邻碘酰苯甲酸和溴化四乙胺在乙腈中,60℃反应15～240min氧化得脱去一碳的腈。14例收率55%～95%。
Aromatic, heterocyclic and fatty primary amid
认为川崎病属中医温病范畴,初期为邪在卫气,治宜生热解毒,辛凉透表;中期分温毒发疹,气营两燔;火毒内炽;疹毒郁结,痰化阻络,三型。恢复期分热恋阴伤和气阴两伤二型,并提出各型
一辆伏尔加24—10型轿车,行驶中经常出现开锅现象,从仪表上观察,每次开锅时,水温表指针指示在正常范围内(该车水温表分为低、正常、过高几个范围,没有读数),而水温警告灯发
轿车常常在制动时发出一种尖叫声,它在制动力足够并能保证在规定的距离之内停住车时,是无关紧要的,但要及时排除,否则,一旦制动失灵,后果是不堪设想的,如何排除呢?
Car oft
我单位北京130汽车一辆,在对发动机电路保养之后,发现用起动机起动时发动机马达旋转正常,但不能着车,而用手摇起动则可以顺利起动。检查其线路的连接并未发现问题,于是更换
在如今铺天盖地的广告时代,众多的中国企业都在绞尽脑汁,刻意创新,以保证自己的广告不被广告海洋所淹没,并力求脱颖而出,一鸣惊人。由此,广告创新正成为企业界精心研究的重
Three dye-doped polymer rods in different matrices were synthesized in which weak hydrogen bond, strong hydrogen bond and covalent bond existed between the dye