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一、前言~(18)F作为研究氟的有机化合物和无机化合物的标记原子是很有用的。对氟的分析采用同位素稀释法以及用~(18)F来核对分析结果也是简便的。中子照射Li_2CO_3或Li_2O_7产生~(18)F的核反应如下: _3~6Ei+_0~1n→_1~3H+_2~4He, _1~3H+_8~(16)O→_9~(18)F+_0~1n。四苯锑硫酸盐[(φ_4Sb)_2SO_4,φ为苯基(C_6H_5~-)]在水中有较大的溶解度,它与氟生成四苯锑氟[φ_4SbF],而四苯锑氟在CCl_4中有较大的溶解度。因此布劳温(L.H.Browen)
I. INTRODUCTION ~ (18) F is useful as a marker atom for studying fluorine-containing organic compounds and inorganic compounds. Analysis of fluorine using isotope dilution method and ~ (18) F to check the results of the analysis is also simple. The nucleation reaction of ~ (18) F produced by neutron irradiation with Li_2CO_3 or Li_2O_7 is as follows: _3 ~ 6Ei + _0 ~ 1n → _1 ~ 3H + _2 ~ 4He, _1 ~ 3H + _8 ~ (16) O → _9 ~ _0 ~ 1n. Tetrabenzoantimony sulphate [(φ_4Sb) _2SO_4, φ is phenyl (C_6H_5 ~ -)] has a greater solubility in water, which forms tetraphenylarsonium antimony fluoride [φ_4SbF] with fluorine, while tetraphenylarsonium antimony fluoride has the highest solubility in CCl_4 Larger solubility. Therefore, B.H. Brrowen