海洋沉积物试样用Ｈ２Ｏ２ＨＡｃ浸取，用以除去干扰测定ＦｅＯ的锰化合物和硫化物，并以Ｈ２ＳＯ３Ｎａ２ＳＯ３混合溶液破坏过剩的Ｈ２Ｏ２，不需过滤分离，即可用ＨＦＨ２ＳＯ４分解试样，Ｋ２Ｃｒ２Ｏ７标准溶液滴定ＦｅＯ。方法经海洋沉积物国家标准物质分析验证，结果与参考值相符，ＲＳＤ（ｎ＝１０）为６．３３％ Samples of marine sediment with H2O2-HAc leaching, to remove interfering with the determination of FeO manganese compounds and sulfide, and H2SO3  Na2SO3 mixed solution to destroy excess H2O2, without filtration separation, you can use HF  H2SO4 decomposition of the sample , K2Cr2O7 standard solution titration FeO. The method was verified by the national standard materials of marine sediments, and the results were consistent with the reference values. The RSD (n = 10) was 6.33%