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id="jdnklxzm" class="box_bt"> <div id="jdnklxzm" class="box_right_title">技術(shù)文章</div> <div id="jdnklxzm" class="bt_text_y"><span><a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 固相萃取裝置存在怎樣的特點呢？</span></div> </div> <div id="jdnklxzm" class="pro_photo"> <div><h1>固相萃取裝置存在怎樣的特點呢？</h1></div> <div id="jdnklxzm" class="pro_details_tongji"> 　更新時間：2022-04-27　點擊量：<span id="Click">836</span> </div> <div id="jdnklxzm" class="n_con" id="c_detail_wrap"> <div>　　<strong>固相萃取裝置</strong>是一種用途廣泛而且越來越受歡迎的樣品前處理技術(shù)，它建立在傳統(tǒng)的液-液萃取(LLE)基礎(chǔ)之上，結(jié)合物質(zhì)相互作用的相似相溶機理和目前廣泛應(yīng)用的HPLC、GC中的固定相基本知識逐漸發(fā)展起來的。SPE具有有機溶劑用量少、便捷、安全、高效等特點。</div><div>　　固相萃取裝置使液體樣品溶液通過吸附劑，保留其中被測物質(zhì)，再選用適當(dāng)強度溶劑沖去雜質(zhì)，然后用少量溶劑迅速洗脫被測物質(zhì)，從而達(dá)到快速分離凈化與濃縮的目的。目前國內(nèi)主要應(yīng)用在水中多環(huán)芳烴（PAHs）和多氯聯(lián)苯（PCBs）等有機物質(zhì)分析，水果、蔬菜及食品中農(nóng)藥和除草劑殘留分析，抗生素分析，臨床藥物分析等方面。</div><div>　　<strong><a href="http://m.segma.com.cn/Products-31439905.html" target="_blank">固相萃取裝置</a></strong>的產(chǎn)品特點：</div><div>　　1、防交叉污染，防霧化真空槽設(shè)計，操作簡單快速。</div><div>　　2、無相分離操作易于收集分析物組件并可處理小體積試樣。</div><div>　　3、固相萃取裝置可配大容量采集容器，可批量處理樣品也可單個處理樣品。</div><div>　　4、真空槽采用特硬玻璃模具成形，其壁厚均勻故可承受-0.085Mpa以上的高負(fù)壓。</div><div>　　5、萃取柱托盤采用特高分子材料制成，其美觀耐腐蝕并且長期使用在高壓力狀態(tài)下不變形。</div><div>　　6、固相萃取裝置JC-GX-12內(nèi)部試管架由聚四氟制成故有很高的耐腐蝕。</div><div>　　固相萃取技術(shù)是一種集采樣，萃取，濃縮和進(jìn)樣于一體的無溶劑樣品微萃取新技術(shù)。與固相萃取技術(shù)相比，固相微萃取操作更簡單，攜帶更方便，操作費用也更加低廉;另外克服了固相萃取回收率低、吸附劑孔道易堵塞的缺點。因此成為目前所采用的樣品前處理技術(shù)中應(yīng)用最為廣泛的方法之一。</div> </div> </div> <div id="jdnklxzm" class="cl"></div> <div id="jdnklxzm" class="ye"> 上一條：<a href="/Article-3056757.html">固相萃取裝置的使用離不開以下要領(lǐng)</a><br />下一條：<a href="/Article-2992515.html">固相萃取裝置的預(yù)處理方法是如何的</a> </div> </div> </div> </div> <div id="jdnklxzm" class="clearfix"></div> <div class="jdnklxzm" id="clear"></div>  <footer class="footer"> <div id="jdnklxzm" class="wrapper w1200"> <div id="jdnklxzm" class="ft-inner"> <div id="jdnklxzm" class="leftCon"> <div 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