目前分析煤气中硫化氢含量的方法有碘量法、亚甲基兰法、醋酸铅速测法、气相色谱法等。碘量法是传统的硫化氢测定方法,但对于低含量的测定,取样量大,分析时间长,1个样品需要2～3h;亚甲基兰法测定范围较小,适用于0～25mg/m3,并且要求硫化氢质量浓度较稳定;醋酸铅速测法的误差较大。

   大量的对比试验表明,气相色谱法分析煤气中的硫化氢含量,分析速度快,精密度高,准确度也较高,明显优于碘量法等其他方法。

   滕州市浩瀚色谱仪器技术服务有限公司，研发出GC-790S煤气中硫化氢含量的测定气相色谱仪，测定焦炉煤气中的硫化氢含量。该方法具有简便、快速等优点 ,准确度、精密度都较高 ,不受干扰物质的影响 ,完全满足成分复杂的焦炉煤气中硫化氢的测定。

At present, the method of analyzing hydrogen sulfide content in gas is iodine method, methylene blue method, lead acetate speed measurement method, gas chromatography method and so on. Iodine method is the traditional method of determination of hydrogen sulfide, but for the determination of low content, the sampling volume is large, the analysis time is long, 1 sample needs 2 ~ 3h; methylene blue method determination range is small, suitable for 0 ~ 25mg / M3, and requires a stable concentration of hydrogen sulfide concentration; lead acetate rapid measurement method of the larger error.

    A large number of comparative tests show that gas chromatography analysis of hydrogen sulfide content, analysis speed, high precision, accuracy is also higher, significantly better than iodometric method and other methods.

    Tengzhou vast chromatographic equipment technical services Co., Ltd., developed GC-790S gas sulfide content determination of special gas chromatograph, determination of coke oven gas hydrogen sulfide content. The method has the advantages of simplicity and fastness, and the accuracy and precision are all high and are not affected by the intermittent substances, and the content of hydrogen sulfide in the coke oven gas is completely satisfied.