H2S Bottle-Vac 取样器 | 29-BV500-H2S

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H₂S Bottle-Vac 取样器

当从PPB到亚PPB水平的罐中取样时，H₂S和甲硫醇的回收仍然是一个分析挑战。 在采样罐中存在超过10-15％的相对湿度已经显示出相对于干燥样品显着降低H₂S的可靠储存时间 - 以及较小程度的甲硫醇。

Fortunately, Entech offers an economical solution. Now, laboratories can choose to collect H₂S and methyl mercaptan samples into new H₂S Bottle-Vac canisters. These canisters are designed to accomodate a specic amount of silica gel within the sampler in order to dehydrate the sample upon collection. This small amount of silica gel eectively removes more than 90% of the water vapor without eecting quantitative recoveries of H₂S and methyl mercaptan. Easily collect H₂S, COS, and MeSH into 0.5L and 1L HS Bottle-Vac canisters and reliably retain >80% recovery even after a 1-2 week storage time prior to analysis. For the collection of heavier sulfur compounds – which are less aected by humidity levels, simply utilize standard Bottle-Vac or Silonite canisters. Silonite cylinders are also available for high pressure renery gas sampling environments and long-term storage requirements.

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