portant; word-wrap: break-word !important; font-size: 16px;">portant; display: inline-block; float: left; font-family: inherit; line-height: 1.6em; vertical-align: top;">HPLC級高純液相色譜溶劑
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">HPLCportant; word-wrap: break-word !important; font-family: 宋體;">試劑具有以下優(yōu)點(diǎn)：
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">低紫外吸收；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">非揮發(fā)性物質(zhì)、游離酸、游離堿和水份含量低；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">可用于熒光檢測。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">用于液相色譜（portant; word-wrap: break-word !important;">LCportant; word-wrap: break-word !important; font-family: 宋體;">）樣品制備、LCportant; word-wrap: break-word !important; font-family: 宋體;">樣品分析、LC-MSportant; word-wrap: break-word !important; font-family: 宋體;">分析。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">農(nóng)殘級試劑具有以下優(yōu)點(diǎn)：
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">極低的農(nóng)殘背景值（≤portant; word-wrap: break-word !important;">5 pg/ml portant; word-wrap: break-word !important; font-family: 宋體;">），不揮發(fā)性組分極少；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">GCportant; word-wrap: break-word !important; font-family: 宋體;">控制（ECD-PNDportant; word-wrap: break-word !important; font-family: 宋體;">檢測）質(zhì)量可靠，穩(wěn)定性高；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">適用于分析有機(jī)氯農(nóng)藥、有機(jī)磷農(nóng)藥、多氯聯(lián)苯；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">（portant; word-wrap: break-word !important;">PCBsportant; word-wrap: break-word !important; font-family: 宋體;">）及其他用GC/ECDportant; word-wrap: break-word !important; font-family: 宋體;">和GC/PNDportant; word-wrap: break-word !important; font-family: 宋體;">檢測的化合物；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">符合各種殺蟲劑殘留量分析的要求和對低揮發(fā)性雜質(zhì)的要求。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">用于氣相色譜檢測（portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">ECD、PND），用于有機(jī)氯、有機(jī)磷農(nóng)藥， portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">PCBs及其他用GC/ECD和GC/PND檢測的化合物。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">另外，還有專用于二惡英、呋喃、portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">PCBs等化合物分析用的ENVISOLV ®試劑； 用于環(huán)境中高揮發(fā)性氯代烴的氣相色譜色譜（portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">ECD）分析、芳香烴的檢測（FID）分析用的OEKANAL®試劑。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">光譜純?nèi)軇┚哂幸韵聝?yōu)點(diǎn)：
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">低紫外吸收、低紅外吸收；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">雜質(zhì)含量低；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">適用于portant; word-wrap: break-word !important;">UVportant; word-wrap: break-word !important; font-family: 宋體;">、IRportant; word-wrap: break-word !important; font-family: 宋體;">光譜分析。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">用于portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">UV、IR光譜分析
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">符合國際標(biāo)準(zhǔn)要求，金屬元素雜質(zhì)含量低（大多是portant; word-wrap: break-word !important;">ppmportant; word-wrap: break-word !important; font-family: 宋體;">級）。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important;">優(yōu)級純試劑可用于大多數(shù)常規(guī)實(shí)驗(yàn)，這類產(chǎn)品還可應(yīng)用于生產(chǎn)領(lǐng)域。
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">特純（portant; word-wrap: break-word !important;">extra pureportant; word-wrap: break-word !important; font-family: 宋體;">）或者合成（for synthesisportant; word-wrap: break-word !important; font-family: 宋體;">）級別試劑的質(zhì)量標(biāo)準(zhǔn)能夠滿足實(shí)驗(yàn)室常規(guī)溶液的配置或標(biāo)準(zhǔn)化生產(chǎn)使用（藥物合成原材料等），通常只檢測一些重要應(yīng)用的參數(shù)，比如，純度、IRportant; word-wrap: break-word !important; font-family: 宋體;">參數(shù)、水分含量和醚含量以及過氧化物成分。
portant; word-wrap: break-word !important;">氘代溶劑廣泛應(yīng)用于化學(xué)研究領(lǐng)域，對于分析有機(jī)物分子結(jié)構(gòu)的重要方法－－核磁共振波譜法是不可缺少。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important;">核磁共振實(shí)驗(yàn)可以提供原子同其他分子中的原子的關(guān)聯(lián)信息，包括分子的空間取向、三維空間結(jié)構(gòu)。在蛋白質(zhì)組學(xué)、染色體組學(xué)、藥物研究領(lǐng)域有廣泛的應(yīng)用。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">對氘代溶劑有哪些要求？
portant; word-wrap: break-word !important;">NMRportant; word-wrap: break-word !important; font-family: 宋體;">對所用溶劑的氘代度反應(yīng)很敏感，如用200portant; word-wrap: break-word !important; font-family: 宋體;">兆赫光portant; word-wrap: break-word !important;">譜，使用氘代度在portant; word-wrap: break-word !important;">99.5portant; word-wrap: break-word !important; font-family: 宋體;">％～99.8portant; word-wrap: break-word !important; font-family: 宋體;">％就足夠了，如果提高設(shè)portant; word-wrap: break-word !important;">備的等級，例如用portant; word-wrap: break-word !important;">600portant; word-wrap: break-word !important; font-family: 宋體;">兆赫光譜，則需要更高氘代度的溶portant; word-wrap: break-word !important;">劑。
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">基準(zhǔn)化合物必須是測試精度范圍內(nèi)的純物質(zhì)；基準(zhǔn)溶液被用于檢驗(yàn)和校準(zhǔn)當(dāng)量溶液、portant; word-wrap: break-word !important;">pHportant; word-wrap: break-word !important; font-family: 宋體;">緩沖溶液；只有這樣的物質(zhì)才能反映檢驗(yàn)測定當(dāng)量溶液。
portant; word-wrap: break-word !important;">衍生法指借助化學(xué)反應(yīng)將待測組份接上某種特定基團(tuán)，從而改善其檢測靈敏度和分離效果的方法。利用化學(xué)衍生反應(yīng)達(dá)到改變化合物特性的目的，使其更適合于特定分析的過程，在儀器分析中被廣泛應(yīng)用。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">氣相色譜用：portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">為了增加樣品的揮發(fā)度或提高檢測靈敏度；
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">高效液相色譜用：portant; word-wrap: break-word !important;">與樣品組份進(jìn)行化學(xué)反應(yīng)，反應(yīng)的產(chǎn)物有利于色譜檢測或分離。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">紫外光譜用：portant; word-wrap: break-word !important;">使被測化合物帶上特定基團(tuán)，具有紫外吸收。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">紅外光譜用：portant; word-wrap: break-word !important;">使被測化合物鍵合特定基團(tuán)，具有紅外吸收。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">熒光檢測用：portant; word-wrap: break-word !important;">帶上熒光發(fā)色基團(tuán)。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">衍生化反應(yīng)的目的：
portant; word-wrap: break-word !important;">提高樣品檢測的靈敏度；改善樣品混合物的分離度；適合于進(jìn)一步做結(jié)構(gòu)鑒定，如質(zhì)譜、紅外或核磁共振等。
portant; word-wrap: break-word !important; font-size: 15px; background-color: rgb(250, 192, 143);">portant; word-wrap: break-word !important;">超純級portant; word-wrap: break-word !important;">(puriss+,puriss. p. a ): portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 宋體;">金屬元素雜質(zhì)含量低，雜質(zhì)含量控制在ppbportant; word-wrap: break-word !important; font-family: 宋體;">或pptportant; word-wrap: break-word !important; font-family: 宋體;">水平，適用于無機(jī)痕量金屬元素分析；
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">portant; word-wrap: break-word !important;">合成級portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">(for synthesis, purum, pure, extra pure):portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;"> ≥ portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">95.0%，滿足實(shí)驗(yàn)室試驗(yàn)和合成用；
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">portant; word-wrap: break-word !important;">工業(yè)級portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">(technical grade)：portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">≥ portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">80%，實(shí)驗(yàn)室和生產(chǎn)階段的原料和輔料。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 微軟雅黑, sans-serif;">
