氣相色譜儀和液相色譜儀有什么不同？ - 北京華儀通泰環(huán)?？萍加邢薰?/title> <meta name="keywords" content="氣相色譜儀和液相色譜儀有什么不同" /> <meta name="description" content="氣相色譜儀和液相色譜儀有什么不同？色譜是用于進(jìn)行色譜分離分析的裝置。包括取樣系統(tǒng)、檢查系統(tǒng)、記錄和數(shù)據(jù)處理系統(tǒng)、溫控系統(tǒng)、流動相控制系統(tǒng)等。現(xiàn)代色譜具有穩(wěn)定性、靈敏度、多用途性和自動化程度高等特點(diǎn)。有氣相色譜、液相色譜、凝膠色譜等。這些色譜被廣泛用于化學(xué)制品、高分子材料的某些含量的分析，凝膠色譜也可以測定高分子材料的分子量及其分布。" /> <link href="/Public/CSS/w/base.css" rel="stylesheet"> <link href="/Public/CSS/w/style.css" rel="stylesheet"> <script src="/Public/JS/w/config.js"></script> <script src="/Public/JS/w/jquery.min.js"></script> <script src="/Public/JS/w/common.js"></script> <script src="/Public/JS/w/jquery.SuperSlide.js"></script> <script src="/Public/JS/w/app.js"></script> <script type="text/javascript"> // GoMobile('http:///'); // var searchid = 5; </script> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://#/hm.js?5e26f803acf2cb816999c86569a81ca1"; var s = 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2em;">氣相色譜儀和液相色譜儀有什么不同？色譜是用于進(jìn)行色譜分離分析的裝置。包括取樣系統(tǒng)、檢查系統(tǒng)、記錄和數(shù)據(jù)處理系統(tǒng)、溫控系統(tǒng)、流動相控制系統(tǒng)等。現(xiàn)代色譜具有穩(wěn)定性、靈敏度、多用途性和自動化程度高等特點(diǎn)。有氣相色譜、液相色譜、凝膠色譜等。這些色譜被廣泛用于化學(xué)制品、高分子材料的某些含量的分析，凝膠色譜也可以測定高分子材料的分子量及其分布。</p><p style="text-indent: 2em; text-align: center;"><img src="/Public/Uploads/image/20201030/1604023987432905.png" title="1604023987432905.png" alt="氣相色譜儀和液相色譜儀有什么不同？.png" width="417" height="313" style="width: 417px; height: 313px;"/></p><p style="text-indent: 2em;">其中，氣相色譜和液相色譜是眾所周知的實(shí)驗(yàn)室*端儀器，氣相色譜是指以氣體為流動相的色譜分析儀器。液相色譜是利用混合物的液固或不相容的兩種液體之間的分配比的差異，先分離混合物，然后分析鑒定的儀器。</p><p style="text-indent: 2em;">但是，大家知道氣相色譜儀和液相色譜儀有什么不同？</p><p style="text-indent: 2em;">首先，從分離原理來說，氣相色譜是物理分離方法，利用被測物質(zhì)各成分在不同的2相間的分配系數(shù)的微小差異。 *效液相色譜基于經(jīng)典的色譜引用了氣相色譜的理論，技術(shù)上把流動相改為高壓輸送。</p><p style="text-indent: 2em;">其次，敘述了應(yīng)用范圍、氣相色譜發(fā)具有比較好的分離能力、靈敏度比較高、分析速度也比較快、而且操作容易等優(yōu)點(diǎn)，但由于技術(shù)條件的限制，沸點(diǎn)過高的物質(zhì)和熱穩(wěn)定性差的物質(zhì)都是氣體液相色譜由于樣品可以制作溶液，不需要?dú)饣?，所以不受樣品的揮發(fā)性限制。</p><p style="text-indent: 2em;">*后，從設(shè)備結(jié)構(gòu)來說，氣相色譜是具有載氣源、燃燒氣體、試樣注入部、柱、柱溫箱、檢測器和數(shù)據(jù)處理的系統(tǒng)結(jié)構(gòu)。 *效液相色譜主要由樣品系統(tǒng)、輸液系統(tǒng)、分離系統(tǒng)、檢測系統(tǒng)和數(shù)據(jù)處理系統(tǒng)組成。</p><p style="text-indent: 2em;">另外，小編對在試樣注入口氣化分析樣品后，從載氣取入色譜柱，用對預(yù)檢測混合物中的成分具有不同保持性能的色譜柱分離各成分，依次導(dǎo)入檢測器得到各成分的檢測信號的氣相色譜進(jìn)行了詳細(xì)的了解。根據(jù)導(dǎo)入檢測器的優(yōu)先順序，可以比較是什么樣的成分，可以根據(jù)峰值高度和峰值面積計(jì)算各成分的含量。通常使用的檢測器有熱傳導(dǎo)檢測器、火焰離子化檢測器、氦離子化檢測器、超聲波檢測器、光離子化檢測器、電子捕獲檢測器、火焰光度檢測器、電化學(xué)檢測器、質(zhì)譜檢測器等。</p><p style="text-indent: 2em;">液相色譜根據(jù)固定相是液體還是固體分為液-液色譜( LLC )和液-固色譜( LSC )。現(xiàn)代液相色譜由高壓輸液泵、樣品系統(tǒng)、溫度控制系統(tǒng)、色譜柱、檢測器、信號記錄系統(tǒng)等部分組成。與古典液相色譜裝置相比，具有*效、快速、靈敏等特點(diǎn)。在*效液相色譜中，只要求樣品成為溶液，不受樣品的揮發(fā)性限制，流動相的選擇范圍廣，固定相的種類多，因此熱不穩(wěn)定、不揮發(fā)性、解離性、非解離性，可以分離各種分子量范圍的物質(zhì)。以上就是氣相色譜儀和液相色譜儀有什么不同之處的見解。</p><p style="margin-top: 0px; margin-bottom: 10px; padding: 0px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", Tahoma, Arial, sans-serif; font-size: 14px; white-space: normal;"><br/></p> </div> </div> </div> </div> </div> <div id="i8pjzty" class="news-aggregate-sd"> <div id="i8pjzty" class="xwtji"> <div id="i8pjzty" class="panel-hd"><span>產(chǎn)品推薦</span></div> <div id="i8pjzty" class="panel-xwtj"> <ul class="news-xiw"> <li><a href="/p-11415.html">華儀通泰HY100-02智能型氧氣檢測儀</a> </li><li><a href="/p-11414.html">華儀通泰JQ351-CH2O甲醛檢測儀</a> </li><li><a href="/p-11413.html">華儀通泰UVHY-106L智能臭氧分析儀</a> </li><li><a href="/p-11412.html">華儀通泰AP560 便攜式毒劑檢測儀 </a> </li><li><a href="/p-11411.html">HY106型個人聲暴露計(jì)</a> </li><li><a 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