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级高纯液相色谱溶剂
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">HPLCportant; word-wrap: break-word !important; font-family: 宋体;">试剂具有以下优点：
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;">非挥发性物质、游离酸、游离碱和水份含量低；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">可用于荧光检测。
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;">用于液相色谱（portant; word-wrap: break-word !important;">LCportant; word-wrap: break-word !important; font-family: 宋体;">）样品制备、LCportant; word-wrap: break-word !important; font-family: 宋体;">样品分析、LC-MSportant; word-wrap: break-word !important; font-family: 宋体;">分析。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">农残级试剂具有以下优点：
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">极低的农残背景值（≤portant; word-wrap: break-word !important;">5 pg/ml portant; word-wrap: break-word !important; font-family: 宋体;">），不挥发性组分极少；
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: 宋体;">控制（ECD-PNDportant; word-wrap: break-word !important; font-family: 宋体;">检测）质量可靠，稳定性高；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">适用于分析有机氯农药、有机磷农药、多氯联苯；
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: 宋体;">）及其他用GC/ECDportant; word-wrap: break-word !important; font-family: 宋体;">和GC/PNDportant; word-wrap: break-word !important; font-family: 宋体;">检测的化合物；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">符合各种杀虫剂残留量分析的要求和对低挥发性杂质的要求。
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;">用于气相色谱检测（portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">ECD、PND），用于有机氯、有机磷农药， portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">PCBs及其他用GC/ECD和GC/PND检测的化合物。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important;">另外，还有专用于二恶英、呋喃、portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">PCBs等化合物分析用的ENVISOLV ®试剂； 用于环境中高挥发性氯代烃的气相色谱色谱（portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">ECD）分析、芳香烃的检测（FID）分析用的OEKANAL®试剂。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">光谱纯溶剂具有以下优点：
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、低红外吸收；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">杂质含量低；
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">lportant; word-wrap: break-word !important;">适用于portant; word-wrap: break-word !important;">UVportant; word-wrap: break-word !important; font-family: 宋体;">、IRportant; word-wrap: break-word !important; font-family: 宋体;">光谱分析。
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: 微软雅黑, sans-serif;">UV、IR光谱分析
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">符合国际标准要求，金属元素杂质含量低（大多是portant; word-wrap: break-word !important;">ppmportant; word-wrap: break-word !important; font-family: 宋体;">级）。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important;">优级纯试剂可用于大多数常规实验，这类产品还可应用于生产领域。
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">特纯（portant; word-wrap: break-word !important;">extra pureportant; word-wrap: break-word !important; font-family: 宋体;">）或者合成（for synthesisportant; word-wrap: break-word !important; font-family: 宋体;">）级别试剂的质量标准能够满足实验室常规溶液的配置或标准化生产使用（药物合成原材料等），通常只检测一些重要应用的参数，比如，纯度、IRportant; word-wrap: break-word !important; font-family: 宋体;">参数、水分含量和醚含量以及过氧化物成分。
portant; word-wrap: break-word !important;">氘代溶剂广泛应用于化学研究领域，对于分析有机物分子结构的重要方法－－核磁共振波谱法是不可缺少。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">用途：portant; word-wrap: break-word !important;">核磁共振实验可以提供原子同其他分子中的原子的关联信息，包括分子的空间取向、三维空间结构。在蛋白质组学、染色体组学、药物研究领域有广泛的应用。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">对氘代溶剂有哪些要求？
portant; word-wrap: break-word !important;">NMRportant; word-wrap: break-word !important; font-family: 宋体;">对所用溶剂的氘代度反应很敏感，如用200portant; word-wrap: break-word !important; font-family: 宋体;">兆赫光portant; word-wrap: break-word !important;">谱，使用氘代度在portant; word-wrap: break-word !important;">99.5portant; word-wrap: break-word !important; font-family: 宋体;">％～99.8portant; word-wrap: break-word !important; font-family: 宋体;">％就足够了，如果提高设portant; word-wrap: break-word !important;">备的等级，例如用portant; word-wrap: break-word !important;">600portant; word-wrap: break-word !important; font-family: 宋体;">兆赫光谱，则需要更高氘代度的溶portant; word-wrap: break-word !important;">剂。
portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">基准化合物必须是测试精度范围内的纯物质；基准溶液被用于检验和校准当量溶液、portant; word-wrap: break-word !important;">pHportant; word-wrap: break-word !important; font-family: 宋体;">缓冲溶液；只有这样的物质才能反映检验测定当量溶液。
portant; word-wrap: break-word !important;">衍生法指借助化学反应将待测组份接上某种特定基团，从而改善其检测灵敏度和分离效果的方法。利用化学衍生反应达到改变化合物特性的目的，使其更适合于特定分析的过程，在仪器分析中被广泛应用。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">气相色谱用：portant; word-wrap: break-word !important; font-size: 15px;">portant; word-wrap: break-word !important;">为了增加样品的挥发度或提高检测灵敏度；
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">高效液相色谱用：portant; word-wrap: break-word !important;">与样品组份进行化学反应，反应的产物有利于色谱检测或分离。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">紫外光谱用：portant; word-wrap: break-word !important;">使被测化合物带上特定基团，具有紫外吸收。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">红外光谱用：portant; word-wrap: break-word !important;">使被测化合物键合特定基团，具有红外吸收。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">荧光检测用：portant; word-wrap: break-word !important;">带上荧光发色基团。
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">衍生化反应的目的：
portant; word-wrap: break-word !important;">提高样品检测的灵敏度；改善样品混合物的分离度；适合于进一步做结构鉴定，如质谱、红外或核磁共振等。
portant; word-wrap: break-word !important; font-size: 15px; background-color: rgb(250, 192, 143);">portant; word-wrap: break-word !important;">超纯级portant; word-wrap: break-word !important;">(puriss+,puriss. p. a ): portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 宋体;">金属元素杂质含量低，杂质含量控制在ppbportant; word-wrap: break-word !important; font-family: 宋体;">或pptportant; word-wrap: break-word !important; font-family: 宋体;">水平，适用于无机痕量金属元素分析；
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">portant; word-wrap: break-word !important;">合成级portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">(for synthesis, purum, pure, extra pure):portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;"> ≥ portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">95.0%，满足实验室试验和合成用；
portant; word-wrap: break-word !important; background-color: rgb(250, 192, 143);">portant; word-wrap: break-word !important;">工业级portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">(technical grade)：portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">≥ portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">80%，实验室和生产阶段的原料和辅料。
portant; word-wrap: break-word !important;">portant; word-wrap: break-word !important; font-family: 微软雅黑, sans-serif;">
