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利用 Ｎａ Ｉ Ｏ４鲁米诺流动注射化学发光法，以 ８羟基喹啉掩蔽 Ｍ ｎ２＋ 以外的其它金属离子，柠檬酸钠掩蔽 Ｍ ｎ２＋ 和 Ｃｏ２＋ 以外的金属离子，达到同时测定 Ｍ ｎ２＋ 和 Ｃｏ２＋ 的目的。 Ｍ ｎ２＋ 离子的检测限达０１９４ ｎｇ／ｍ ｌ，ｒ＝ ０．９９８４，线性范围（１０－ ９～１０－ ７）ｇ／ｍ ｌ，回收率 ８８．０％ ～１０７．６％ ，测定 Ｒ Ｓ Ｄ 为 １．４２％ 。 Ｃｏ２＋ 离子的检测限达 １．７１７ ｎｇ／ｍ ｌ，ｒ＝ ０．９９９３，线性范围（１０－ ８ ～１０－ ６）ｇ／ｍ ｌ，加标回收率 ８７．８％ ～１１５５％ ，测定 Ｒ Ｓ Ｄ 为 １．９６％ 。
Flow-injection chemiluminescence with Na I O4-Luminol was used to mask other metal ions except M n2 + with 8-hydroxyquinoline. Sodium citrate masked metal ions other than M n2 + and Co2 + to achieve the simultaneous determination of M n2 + and Co2 + purpose. The detection limit of M n2 + was 0.194 ng / ml, r = 0.9984, and the linear range was from 10- 9 to 10-7 g / ml. The recoveries ranged from 88.0% to 107.6% R S D is 1.42%. The detection limit of Co2 + ion was 1.717 ng / m l, r = 0.9993, and the linear range (10 -8 ~ 10 -6) g / m l. The recoveries were 87.8% ~ 1155% R SD was determined to be 1.96%.