上海惠分白酒中甲醇含量的测定气相色谱�?参数-价格-中国粉体罐�/title>

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style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><strong><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">白酒中甲醇含量的测定气相色谱�?/span></strong><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">分析原理</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"> 蒸馏除去发酵酒及其配制酒中不挥发性物质，加入内标（酒精、蒸馏酒及其配制酒直接加入内标），经气相色谱分离，氢火焰离子化检测器检测，以保留时间定性，外标法定量、�/span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">仪器和设夆�/span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">GC-90气相色谱仪（配氢火焰离子化检测器FID，毛细进样系统）</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">HFH-300氢气发生�?/span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">HFA-2000空气发生�?/span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">高纯氮气钢瓶氓�/span><span style="font-family:微软雅黑">+减压阀</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">分析天平：感量为</span><span style="font-family:微软雅黑">0.1mg</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><strong><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">白酒中甲醇含量的测定气相色谱�?/span></strong><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">分析步骤</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">吸取</span><span style="font-family:微软雅黑">100ml试样�?00ml蒸馏瓶中，并加入100ml水，加几颗沸石连接冷凝管，用100ml容量瓶作为接收器，并开启冷却水，缓慢加热蒸馏，收集馏出液，当接近刻度时，取下容量瓶，待溶液冷却到室温后，用水定容至刻度、混匀。吸�?00ml蒸馏后的溶液于试管中，加�?0ml叔戊醇标准溶液，混匀、备用、�/span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">仪器分析条件９�/span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">色谱柱：聚乙二醇石英毛细管柱</span><span style="font-family:微软雅黑">(PEG-20M毛细色谱柱），柱�?0m,内径0.25mm,膜厚0.25um,或等效柱、�/span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">色谱柱温度：初温</span><span style="font-family:微软雅黑">40℃，保持1min,�?0�?min升到130℃，�?0�?min升温�?00℃，保持5min.</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">检测器温度９�/span><span style="font-family:微软雅黑">250ℂ�/span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">进样口温度：</span><span style="font-family:微软雅黑">250ℂ�/span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">载气流量９�/span><span style="font-family:微软雅黑">10ml/min</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">进样量：</span><span style="font-family:微软雅黑">10ul</span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px"><span style="font-family:微软雅黑">分流比：</span><span style="font-family:微软雅黑">20�?、�/span></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 14px">谱图９�/span></p><p><img src="//www.znpla.com/img1/img/daily/2025/03/31/140803_693410_procont.png"/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = 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