镧(Ⅲ)催化过氧化氢氧化丽春红褪色光度法测定痕量镧
란(Ⅲ)최화과양화경양화려춘홍퇴색광도법측정흔량란
Fading spectrophotometric determination of trace lanthanum based on its catalytic effect on oxidation of ponceau by peroxide
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