铝和钛都是容易生成难熔化合物的元素,在一般情况下用空气-乙炔火焰是不能测定的,目前常应用氧化亚氮-乙炔火焰法。树脂中存在的硅对铝有负干扰,采取加入钼酸钠作为抑制剂,抑制硅的干扰。钛和铝共存时,铝对钛有正干扰,非常显著,但当铝含量增加到一定量时,干扰趋于恒定,采用加入铝和氟化铵消除此种干扰。 Both aluminum and titanium are elements that tend to form refractory compounds. In general, air-acetylene flames can not be measured, and the nitrous oxide-acetylene flame method is currently used. The presence of silicon in the resin negatively interferes with aluminum, with the addition of sodium molybdate as an inhibitor, inhibiting the interference of silicon. Titanium and aluminum coexist, aluminum has a positive interference with titanium, very significant, but when the aluminum content increases to a certain amount, the interference tends to be constant, the use of aluminum and ammonium fluoride to eliminate such interference.