Hô R, Marty J C, Saliot A
Int J Environ Anal Chem. 1982;12(2):81-98. doi: 10.1080/03067318208071573.
Hydrocarbons in the western Mediterranean Sea were analysed for surface microlayer and subsurface waters during April 1981. Three methods were used for determining both concentrations and markers distribution patterns: U.V. spectrofluorimetry, and original HPLC/U.V. spectrophotometry method and capillary gas liquid chromatography. No systematic relationship was found between concentrations determined by U.V. spectrofluorimetry and HPLC/U.V. spectrophotometry. Concentrations variation ranges are: 0.01-0.20 microgram 1(-1) for dissolved aromatic hydrocarbons; 0.02-0.13 microgram 1(-1) for particulate aromatic hydrocarbons; 0.02-20.57 micrograms 1(-1) for dissolved n-alkanes; 0.13-0.83 microgram 1(-1) for particulate n-alkanes. Surficial waters appear as very slightly polluted with an exception the Ligurian Sea for which highest concentrations were encountered. There is a slight enrichment of particulate hydrocarbons in the surface microlayer in the range 1-3. But, dissolved hydrocarbons can be either depleted or enriched up to 270 times in the surface microlayer, indicating the extreme efficiency of sea-air exchange processes. Aromatic fingerprints and n-alkane distribution patterns are discussed both for pollution and fractionation processes indicators at the sea-air interface.
1981年4月，对地中海西部海域的表层微层水和次表层水的碳氢化合物进行了分析。采用了三种方法来测定浓度和标志物分布模式：紫外荧光分光光度法、原创的高效液相色谱/紫外分光光度法和毛细管气液色谱法。紫外荧光分光光度法和高效液相色谱/紫外分光光度法测定的浓度之间未发现系统关系。浓度变化范围为：溶解态芳烃为0.01 - 0.20微克/升；颗粒态芳烃为0.02 - 0.13微克/升；溶解态正构烷烃为0.02 - 20.57微克/升；颗粒态正构烷烃为0.13 - 0.83微克/升。表层水看起来污染程度很低，利古里亚海除外，该海域的浓度最高。表层微层中颗粒态碳氢化合物略有富集，富集倍数在1 - 3之间。但是，溶解态碳氢化合物在表层微层中可能会减少或富集高达270倍，这表明海气交换过程的效率极高。讨论了芳烃指纹图谱和正构烷烃分布模式作为海气界面污染和分馏过程指标的情况。
