CINXE.COM
Just a moment...
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'non-interactive',cRay: '9134a66bcdd27e32',cH: 'lR8nOStbj6ogOtjxTw_FiQ5TsKNYpnWG0wzo_zb2TbE-1739783487-1.2.1.1-36A51UQy_oi7gGsfTUDWwhzk7e6IBHO3K8kWV9Gxuy7kx.u4N80VrTXsCkxS9gcJ',cUPMDTk: "\/abstracts\/search?q=gas%20chromatography&__cf_chl_tk=jti.CTk44jKwURrHJhlMGcGh3.dkuRDml8f6F1LjO_c-1739783487-1.0.1.1-QBqcFwpCRRIEKCHV8AVm7506RNqaHKKgx5L6EKWDo8o",cFPWv: 'b',cITimeS: '1739783487',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=gas%20chromatography&__cf_chl_f_tk=jti.CTk44jKwURrHJhlMGcGh3.dkuRDml8f6F1LjO_c-1739783487-1.0.1.1-QBqcFwpCRRIEKCHV8AVm7506RNqaHKKgx5L6EKWDo8o",md: "culBbBKMxs4j.opvo42QAO4G.iIf4FkEZbjtvr3qzBQ-1739783487-1.2.1.1-LTB..Q09oQIRq9ByPvlqGJd5.PKMnq.MAKaX3pv41qhxVx5NJmasStrNo6wCK6PgBOZLc6qwersUp9PU80OA9ltOxv_kkq_hotlaxrOcT1WtTSMKTqapE8chrP3R90pIKjfL2bCT5H0KIWZKeEM9_qoWXOg.B6nCxJDnJjHbVgdwvfI5xhIjUmwWVJz8pLCo4lhZUoWjtYEaVdp81CIQnTfm8pHQ7JkyHNab6hIzIr3NXsKZylO_wXwJPxNCZfzcVrAYikaKsoreqHoFZcXvX3_1X6YZlgSixShDw_9gSpX7oYE6hGWKRPn1Rr5kLUdiB0lphg6aGh1CjQYDozQ_kPab6H5vh2j0mBX9yw0tbYKwGYmdk8BDUl3pxD7XbmLKHe_Gn3sjazoKQlaZwHBeCJrRSh.1GsDfR.UmFn1.Fh2xEoCJ0br9hO3tWu0OnBNaTvo9r92deYNMVj.Cq5YRrtrWjqVh0DZRlFQmMfzdXQ7AZlU.iRmUOU24PSE5_JosCt3RO9_oOK4nraN8ftZQAIHMlG5v61SZNUmzqhh2KKEvN0KbQCyqLO5Ps0ozZIXMYNwRvc3nTcS3uLTkVpg2JNmAjFNJjK_TW2PhNY91pchGJAW1cqHPElQTkaewEddLC4spMJcEJEXVh67S34K2q038fAEWgkfgkryrCAu_2DOJw_dwCFD0TT4cpd.F.quJ5TeSyJYk9C76XBKU5KjlefvuG8.32.Elx7VMusETSGJiEhO4_tCSzqw7G.XqH8fZrJlvMWd_IvUIGGQcPuoBovFZRfo0496eNZHB0JdxT.LfS.NNbYM31TL82inoGJe_VdRBASObCc_zEqWemnEeOryDOf6HWrKRKRxc.IUaRY0EQCoYonCS31fabJclVTIk4pyFWuGuC2sAy88Q0cRnJogxVdS7De_Sh2Pqy5coSrw0AkVjq91sQaaZOUmXmFPdtM8haAalq5Yb3AKYjHeCPraRJ.NzUMByy7riwqsYooEswhU7lHiVV9DdLocNKGp9qNolZ0BDHcQA1KpaCY37Zx_1Sp25nbtMI3dAi.0OWU838Cc54xGfuM_pf3LW_X9aPxFgAHMXpvHXTKa_2oLsZanp4w4f7gMWcqrr2oa7LqlOCFoPGeAECvYMTf9pRBfasw5myRwkUPmBzqITxBIbUdp1gmHvwTeo74QEDw5rk.v491cqG2dCrXu5OqdKR6wdWEX8AvN0FkCcfaDor6.8hg4lodv1il8r.A2BeVzERO79ZldMAO38tSTROpIMMpHjbb4mc3YKFfW9JGivnyv1oRZB09O3Jzb5oQ4JpK9mYdFsS_0J0FPSssnqhpnv9W7Logn1CsW1heUfzIw0RzG9MMzPdvHzO3XygKgsQcK54gWF1TKKLjMMkgFHEhGMZI204TyJnDWeIVWfi5brc2Kx1x_lOBA3Q_I4ME2fI5WlLdC35O7NyB0pZvNRjdfHBkWjFbeLDqS8eQ3bi3E3Xoi6g0RNMigwnp65J0Er.aTv0xlp8LqInAJ0ymYb9urDjgOEhxzSSUsA6_a4FfLYK6oFEHWBI84IWZ7JwTrOUYtHK79loqFaNbBwOSLNkO7vkHgbN_rPLWUbXWqZNo6n0hi4Nm6y6Kk146SuagIPdLIuNoiw5mUXeVLvJ6JRD5GtCR4deE0bhFOApLjhWgD7k5JZ1zRf5T.GoSDm2NHh8sPvTsUtfiCcxcwSrnHCWCP2LP0mGbTugt3JoQiYZJ3pMDsvcdvoRPYrPTA7Lg54hLcoamIyj1fRTfkm7vmHC16pIkML1.G7T5HdRggu7Wvohp9h7CkUY3.Wr5JxisP0FT7N2I4S4W.cM0WhdhyvmoM_7AudX3a70I5LCfzcxs0H1w4ZNaaxkrmVfScV15vXhMVfqFdjsiV59rw3efO2Y4GnooyU1hC3vxxgyZbD2f0Hwl7t2HV6bCChqTy9BmtDB6h8grw",mdrd: "eKLoqQ2fgCw42vmGnn9VVKGLYP6A5e4ws.aiDHfikVE-1739783487-1.2.1.1-TEbHaBwxjN_VwXhcaHyb2Dol7mN.yXrKKBYA1QJixIWPciEOai35b6KgyStvV0LYdbUYzbkZyt1pE5PikXxxhrZz7_D8cq3cXnkY.ARvzyiiU4yXjEgHbAgM7bvG5hK6NpnFhGsRQ2oknnM7QM7ITo41Sir7l5ifoc_Dmc4QzM6tWgm7GTJ7Jmgo9rVCiQy2u7zNJn0z4iDyCoD3dIvDk0iU8TY544SA2XVmyPh_IUKZgb8cYXyUHiJm5HfLjPJZrIz4Tz84gb0G9Wgpcgl26du0FW8jcLV1Wi75wgI1zTNN2y_AaOmHGmRf5cFNqFlW7mjpmtJgAq0jRTp77Cyntkyqkd6zhqg1f2KDNZ_Fn3..ckj_8IMQBW5HwqPRlIY5gXSrfP0IuPyikeyFG5q4A0tOocjmivolyMpgGgYfHetS.FZwEPNyqiVzZ9UCTo3J_e9A_0UovQNRs2yy2z87iLshg8m7Kiob1VeSvQJEvUDA1hMJzBECLqI0xfeqfeFzr5WEE2_VqmWRN5KdtZLGQtV9mOhMF9bliBhLGMU4bHZP0LyEEqMJau.FgPPfC9Nv08nbEg_gt6Qh2fS4AE7oCMTMV6fVf9oEXrC2dOrxWVII4W0Xb0yC942SNJdP7Pd.19XDugex8GN4w4hfEQW5Hb.5eo2v6fiZeK359tzTFgK5WW6eYa6ONNCBVxAM9nHYBaanz2sIHfZq4yFh2GQ1Tug0oJK9jPoh11Z6ZskoenpmiJZ7YxtSxmlcDQVp_5_5q0JP2sYn63Etg6Q1nrdQt6bmhqTlr00hVoXjRS6LbchiD4fSLPCGL6akf2DNrXSVov9pn55d8Poq4rTxmsE63oKif8aXRqF62xZ5X8VVRjKxPla4h2kaqdVxajpHRCP7LPnsenv.Z0eGyU1viVsfiV24lm6Ol8ptfiPd2R1iIF2jHA8mK2OvmczycYCY..ZgAZ5mAUtfa5c25izJYvhSeUX2rh3yp96YVA85slN7yS7CmDihc4rCKwsUhdjRu1LzCAyv1wPg.2TkujlVjDEc.P91OFN7B5TlRw9KxMUZBgOXDnQQqXartnhMgd2x4yysTfu9GbPVv1t6FYO7IqlQDPvxf.sqX528mTfd2Hkbtuyyrd0xGNaWBAcBEoXhR2l0K5qUY16lBLHYgtQ3RHyhXOGjmrG2IcO5zMp2uZ9rzcYMf5gfqVD2hW1ge2oJds07ZwjhZWZlTPNmsnMF1zQ1qurm2dIice7B710JH4YXTDTiWxVGd98Fe8kq__CkgnxF3ZpT8a.tfgZf5rpLHK4xx4dWxsd.s4Bgj89hk_msgtZQRPHjVWd4kAZiKpVsGBuLB0sqteiw_vXZNdqNrUYpii6suerCvQ91eOVXCKZJuWwhW1R.7_qTpXjjW0ge.FZYAUxmia49ZKL12a4pj6x4W7c.WmmzmWzBNIB.cwgznRIvf7Je1A7Pzmt5Ds1BCgX4eosun6rIMBL78WSn6XgMe2msVN5GwZ_kmTD7pgEK88BNc12X7d0naH2ux82d0yp72sTMHCA1RCC_5NT5_tuK7izsPtnr31yyMW32PWyBgDvmFnywlVqUwKhFR9QgBQOPzAOVNpbfwUcp_u9lZs5NY__MXh7VdLgeLiMDbi6M.XK8wKfxTFXGU0.Yc0B2Cs9TiMcN_yXgR6tSCBhv7cmvAQx7U.th3Ld9mgJvRQIYhga9hReOi2sUl2OQghRf2O6NSEiknE9Yam28qwQvh_dorRq2HtAZUAk_DuAuKpXsDxr1QNk0ggomNLB4SW5GFqHoIJs1o9DryO1X6E4MDp.LH4tmSmFabU_1v.YajauyWyOEY97rTIr9QG8791iHeLZz0v_lgeHLbmsfCSvrss0Bm7.ngup4zu3FYaAKv0AqQncRxD2yXnGmwGjeGtHa0B6ce5FVvrh2LHN4kz81rK_rZmCARtga3ICe695RymYvZMfnsJIoZW0pzUCUWxkErlVk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134a66bcdd27e32';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=gas%20chromatography&__cf_chl_rt_tk=jti.CTk44jKwURrHJhlMGcGh3.dkuRDml8f6F1LjO_c-1739783487-1.0.1.1-QBqcFwpCRRIEKCHV8AVm7506RNqaHKKgx5L6EKWDo8o" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>