Nonfat dry milk is an inexpensive proteinaceous eluent.脱脂奶粉是廉价的蛋白质洗脱剂.Conclusion 95 % alcohol may be applicable as the eluent of triptolide.结论95%乙醇可作为雷公藤内酯醇的洗脱剂.The invention extracts polyphenol from decolouring column e...
薄层状的坚硬的石灰岩山崖正好位于靠盆地一侧.A thin, resistant limestone escarpment is present just basinward.泥质物被许多薄层灰岩所隔开.The mud is interrupted by numerous thin beds of limestone.局部出现砂质页岩薄层和碳质碎屑.Thin layers of sandy shale, and carbonaceous ...