div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentfor-thaisciencearticle6210031371pdf-determination-of-urine-and-salivary-cotininehtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: ThaiScience for ThaiScienceArticle6210031371pdf · Determination of urine and salivary cotinine using gas and liquid chromatography and enzyme-linked immunosorbent assay J Chromatogr loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsnetreader036viewer202208141060a3d33839a98a67993fe219html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentfor-thaisciencearticle6210031371pdf-determination-of-urine-and-salivary-cotininehtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: ThaiScience for ThaiScienceArticle6210031371pdf · Determination of urine and salivary cotinine using gas and liquid chromatography and enzyme-linked immunosorbent assay J Chromatogr loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsnetreader036viewer202208141060a3d33839a98a67993fe219html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentfor-thaisciencearticle6210031371pdf-determination-of-urine-and-salivary-cotininehtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: ThaiScience for ThaiScienceArticle6210031371pdf · Determination of urine and salivary cotinine using gas and liquid chromatography and enzyme-linked immunosorbent assay J Chromatogr loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...