| 高碳铬铁中Cr、P、Mn的联合测定 |
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| 引用本文： | 汤成兰,魏恩双,刘凤菊,王俊秀.高碳铬铁中Cr、P、Mn的联合测定[J].山东冶金,2005,27(4):40-42. |
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| 作者姓名： | 汤成兰 魏恩双 刘凤菊 王俊秀 |
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| 作者单位： | 1. 莱芜钢铁股份有限公司,品质保证部,山东,莱芜,271104
2. 山东鲁丽钢铁有限公司,山东,寿光,262700 |
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| 摘 要： | 用过氧化钠熔融酸化的方法处理样品,用同一母液分别以过硫酸铵氧化容量法测定铬、钼蓝光度法测定磷,过硫酸铵银盐氧化光度法测定锰.通过控制测定的酸度,各元素线性良好,测得铬、磷、锰的相对标准偏差分别小于0.55%、4.75%、3.76%.该方法可缩短分析周期,精密度、准确度高.
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| 关 键 词： | 高碳铬铁 过氧化钠 过硫酸铵 光度法 联合测定 |
| 文章编号： | 1004-4620(2005)04-0040-02 |
| 收稿时间： | 2005-04-05 |
| 修稿时间： | 2005年4月5日 |
Combined Determination of Cr,P and Mn in High Carbon Ferrochrome |
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| TANG Cheng-lan,WEI En-shuang,LIU Feng-ju,WANG Jun-xiu.Combined Determination of Cr,P and Mn in High Carbon Ferrochrome[J].Shandong Metallurgy,2005,27(4):40-42. |
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| Authors: | TANG Cheng-lan WEI En-shuang LIU Feng-ju WANG Jun-xiu |
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| Affiliation: | 1. The Quality Department of Laiwu Iron and Steel Co.,Ltd., Laiwu 271104, China; 2 Shandong Luli Iron and Steel Co., Ltd., Shouguang 262700, China |
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| Abstract: | Sodium peroxide is used to melt and acidate samples and then with the same liquor,the ammonium persulfate oxidation volumetric method,molybdenum blue photometric method and ammonium persulfate argento-oxidation photometric method are respectively used to determine Cr,P and Mn.Through controlling the acidity,each element's linearity is fine.The relative standard deviations(RSD) of Cr,P and Mn are less than 0.55%,4.75% and 3.76% respectively.The methods can shorten the analytical period,showing higher precision and accuracy. |
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| Keywords: | high carbon ferrochrome sodium peroxide ammonium persulfate photometric method combined determination |
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