主题：【求助】（已应助）求助四篇关于金属有机物分析的英文文献

恳请各位能提供下述四篇关于金属有机物分析的英文文献，非常感激。
1.Michiel Ceulemans and Freddy C. Adams
Integrated sample preparation and speciation analysis for the simultaneous determination of methylated species of    tin, lead and mercury in water by purge-and-trap injection-capillary gas chromatography-atomic emission spectrometry.  Anal. At. Spectrom., 1996, 11, 201 - 206,

2.Tadeusz Górecki† and Janusz Pawliszyn*
Determination of Tetraethyllead and Inorganic Lead in Water by Solid Phase Microextraction/Gas Chromatography  Anal. Chem., 1996, 68 (17), pp 3008–3014

3.D. Amouroux*, E. Tessier, C. Pécheyran and O. F. X. Donard
Sampling and probing volatile metal(loid) species in natural waters by in-situ purge and cryogenic trapping followed by gas chromatography and inductively coupled plasma mass spectrometry (P-CT–GC–ICP/MS)  Analytica Chimica Acta
Volume 377, Issues 2-3, 31 December 1998, Pages 241-254
4.Andrzej Wasik, Isaac Rodriguez Pereiro and Ryszard Łobi  ski
Interface for time-resolved introduction of gaseous analytes for atomic spectrometry by purge-and-trap multicapillary gas chromatography (PTMGC)
Spectrochimica Acta Part B: Atomic Spectroscopy
Volume 53, Issues 6-8, 6 August 1998, Pages 867-879