男总裁被保镖c呻吟双腿大张bl,扒开学生双腿猛进入喷水小说,狠狠躁18三区二区一区,日本边添边摸边做边爱60分钟

詳細(xì)摘要： Carbohydrate ES糖分離聚合物色譜填料根據(jù)聚合和縮合程度，糖類可分為單糖、雙糖、寡糖 和多糖。單糖和雙糖的分離方法包括陰離子交換色譜法（在存在硼酸條...

詳細(xì)摘要： 手性空柱管：超臨界流體色譜柱今天已成為另一種高效液相色譜，亦或正相亦或反相，它是分析熱不穩(wěn)定中小分子的理想工具。任何可溶于甲醇或更弱極性溶劑的分子都可以用SFC...

詳細(xì)摘要： 彈簧柱：用于制備和工業(yè)純化的靜態(tài)軸向加壓柱，高效,耐用,經(jīng)濟(jì)彈簧柱接頭彈簧柱使用說明簡單方便，不象其它的軸向加壓柱， MODcol SPRING柱是獨立自足的，...

詳細(xì)摘要： 超純多孔硅膠：3µm, 5 µm, 10 µm孔徑: 120 A°, 200 A°, 300 A°

詳細(xì)摘要： UltraSep ESD CHOL

詳細(xì)摘要： The special packings UltraSep ES CAAMand UltraSep ES CAAC were developed for the...

詳細(xì)摘要： Mixtures of nucleobases, nucleosides, and nucleotides （e. g. hydrolysates of nuc...

詳細(xì)摘要： The packings for the separation of proteins were developed on the basis of a wid...

詳細(xì)摘要： The column is suitable for the separation of derivatives of amino acids （A） and ...

詳細(xì)摘要： MLD packings （MLD = monolayer dense） are very stable solide supports, known in t...

詳細(xì)摘要： UltraSep ES PHARM and UltraSep ES PHARM SPEZIAL are high selective HPLC-packings...

詳細(xì)摘要： Special columns are a central concern in our company. With an appropriate column...

詳細(xì)摘要： In addition to ourrange of silicagels we are offering sulfonated styrene-divinyl...

詳細(xì)摘要： All the cation exchangers offered possess chemical fixed exchanger groupsand ind...

詳細(xì)摘要： These anion exchangers are so called ?permanently loaded“ ion exchangers. They e...

詳細(xì)摘要： These anion exchangers are so called ?permanently loaded“ ion exchangers. They e...

詳細(xì)摘要： These anion exchangers are so called ?permanently loaded“ ion exchangers. They e...

詳細(xì)摘要： These anion exchangers are so called ?permanently loaded“ ion exchangers. They e...

詳細(xì)摘要： These anion exchangers are so called ?permanently loaded“ ion exchangers. They e...

詳細(xì)摘要： Special columns are a central concern in our company. With an appropriate column...