建立顶空气相色谱-火焰离子化检测法测定动物园有机废物浸出液中的挥发性脂肪酸。
Development of headspace-gas chromatography-flame ionization detection procedure to determine volatile fatty acids in zoo organic waste leachates.
机构信息
Gdansk University of Technology, 11/12 Narutowicza Street, 80-223 Gdańsk, Poland.
出版信息
Water Sci Technol. 2011;63(12):2873-7. doi: 10.2166/wst.2011.516.
In order to determine volatile fatty acids (short chain monocarboxylic acids with 2 to 6 carbon atoms in a molecule) in leachates formed in organic waste piles a procedure based on static headspace (HS) coupled with gas chromatography (GC) have been proposed and optimized. The conditions of HS extraction and sample introduction into a gas chromatograph as well as of chromatographic separation were considered. Using flame ionization detection LODs were of the order of 0.02-0.37 mg/L. The analyzed leachate collecting on and close to a zoo organic waste pile contained VFAs (Volatile Fatty Acids) at a concentration ranging from 5.5 mg/L to 0.88 g/L and from below LOD to 10.1 mg/L for pool water at some distance from the pile, respectively.
为了测定有机垃圾堆肥中形成的浸出液中的挥发性脂肪酸（分子中含有 2 到 6 个碳原子的短链单羧酸），提出并优化了一种基于静态顶空（HS）与气相色谱（GC）相结合的方法。研究了 HS 萃取和进样到气相色谱仪以及色谱分离的条件。使用火焰离子化检测，LOD 约为 0.02-0.37mg/L。对收集在动物园有机垃圾堆肥上和附近的浸出液进行分析，结果表明，靠近堆肥的池水中 VFAs（挥发性脂肪酸）的浓度范围为 5.5mg/L 至 0.88g/L，而远离堆肥的池水中 VFAs 的浓度范围为低于 LOD 至 10.1mg/L。
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