| 摘要: |
| 采用自动顶空气相色谱法，以顶空瓶80 ℃，30 min平衡时间，4 g氯化钠的条件下，用气相色谱法测定其含量。结果表明，ρ（甲醇）在1.0 ~12 mg/L范围内线性良好，加标回收率为102%~105%，检出限为0.11 mg/L，RSD为3.6%。此法可在30 min之内完成废水中甲醇的测定，缩短样品的前处理时间。 |
| 关键词: 甲醇 气相色谱法 自动顶空 |
| DOI： |
| 分类号:O657.7+1；X832 |
| 基金项目: |
|
| Determination of Methanol in Waste Water by Automatic Headspace Capillary Gas Chromatography |
|
SONG Huan yu
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Yichang Environmental Monitoring Station,Yichang,Hubei 443000,China
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| Abstract: |
| The content of methanol was determined by automatic headspace gas chromatography under the condition of 80 ℃,30 min balance time,and 4g sodium chloride in the top empty bottle. The results showed that the linearity of methanol was in the range of 1.00~12.0 mg/L,and the recovery was between 102% and 105%. The detection limit was 0.11mg/L,and the RSD was 3.6%. This method for determination of methanol in the waste water could complete the whole procedure within 30 minutes,which greatly shortened the time of the sample pretreatment. |
| Key words: Methanol Gas chromatography Automatic headspace |
