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在不同介质中，少量铝对铂的吸光度均有抑制作用，随着铝的浓度增加，则表现为增感作用，其中在硝酸和硫酸介质中５０００μｇ／ｍｌ的铝可使铂的吸光度分别增加９０％和１７８％，铝对铂的干扰可分为与浓度有关及与浓度无关的化学干扰，在硝酸介质中５０００μｇ／ｍｌ的铝对０～５０μｇ／ｍｌ铂的干扰与浓度无关，在该条件下可使用标准加入法。在硝酸介质中，５０００μｇ／ｍｌ的铝还可用作２５μｇ／ｍｌ钠对２５μｇ／ｍｌ铂干扰的缓冲剂。同时探讨了铝对铂的干扰机理。
In different media, a small amount of aluminum had an inhibitory effect on the absorbance of platinum, with increasing concentration of aluminum, it showed a sensitization effect, in which aluminum at 5000 μg / ml in nitric acid and sulfuric acid medium increased the absorbance of platinum by 90 % And 178% respectively. The interference of aluminum on platinum can be divided into concentration-dependent and concentration-independent chemical interference. The interference of 5000μg / ml aluminum in 0 ~ 50μg / ml platinum in nitric acid medium has nothing to do with the concentration, Can use the standard join method. In nitric acid medium, 5000 μg / ml of aluminum can also be used as a buffer for 25 μg / ml sodium interfered with 25 μg / ml platinum. The interference mechanism of aluminum on platinum was also discussed.