It has been reported that the preparation of the 2010 edition of the Chinese Pharmacopoeia is nearly complete. Once implemented, this new version is expected to significantly enhance the overall quality and standards of pharmaceutical products in China. This update marks an important step forward in aligning national regulations with global best practices. According to available information, the latest edition of the "Chinese Pharmacopoeia" includes a total of 4,615 species, with 1,358 new additions. Among these, traditional Chinese medicine accounts for 2,136 species, of which 990 are newly added and 612 are revised. The expansion and revision of drug entries reflect a strong focus on addressing long-standing issues, such as low national standards for traditional Chinese medicine decoctions and common pharmaceutical excipients, as well as improving quality control measures. In terms of scientific and technological advancement, the new edition incorporates a wide range of modern and sophisticated testing techniques from both domestic and international sources. The updated standards emphasize the application of cutting-edge technologies, ensuring that chemical standards meet international benchmarks. This not only enhances the reliability of pharmaceutical products but also supports the development of a more robust and competitive pharmaceutical industry in China.

DNA/RNA Purification Kit

The RNA purification kit is used to purify and recover RNA molecules transcribed in vitro and total RNA extracted from various materials, which can effectively remove contaminating impurities in RNA samples. The recovery rate of this product can reach 80%, and the OD260/OD280 ratio of the obtained RNA is generally about 2.0, which can be directly used in subsequent sensitive experiments (such as microarray analysis, fluorescence RT-PCR, etc.). With the deepening of transcriptomics, the complexity of RNA types, expression regulation and functions is far beyond our imagination.

Removing ribosomal RNAs that account for more than 80% helps to focus sequencing on less abundant but informative RNAs. At present, the removal of rRNA is mainly through the combined use of probe and RNase H. The processed RNA will be mixed with many digestion products, enzymes and ions, which is not conducive to the subsequent construction of RNA library. Take the Columnar RNA Purification Kit as an example. Trizol is a ready-to-use reagent that can be used to purify total RNA from tissues and cells. This is a single-phase solution of phenol and guanidine isothiocyanate that facilitates lysis of tissues and cells, inhibiting RNases to maintain RNA integrity.

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