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xylenol造句
1. With xylenol orange as developer and model 721 spectrophotometer, it is simple and easy to measure human serum zinc concentration, which is suitable for hospital laboratories. 2. The product is mixed by six kinds of xylenol foreign matters. 3. The process and control index of extracting xylenol from the by_product produced from coal tar processing is described. It has a high reference value. 4. Brown liquid , mainly consist of phenol , cresol and xylenol etc. 5. The paper summaries the preparation, properties and application of xylenol isomers. It helps to make use of Xylenol comprehensively. 6. The formation of the complex between lead ion and immobilized xylenol orange caused a large reflected light intensity change, and lead ion in the solution can be determinated. 7. A fiber-optic reflected sensor has been developed by immobilizing xylenol orange on 717 anion ion exchange resin. 8. The low concentration of chlorine dioxide in water can be determined by spectrophotometry based on the chlorine dioxide can decolor and oxidize xylenol orange and chlorophenol red. 9. The flux of water was proportional to the operation pressure, and the rejection of inorganic salts and xylenol orange increased with increasing the operation pressure. 10. The result shows that high valued 3,5-xylenol with a purity of over 95% can be extracted from industry level xylenol fraction by rectification. 11. Objectives To know the resistance of common nosocomial infection pathogens to P - chloro - m - xylenol ( PCMX ) . 12. Can be used as raw material for dyestuff , phenolic resin , medicine and oil paint . or used as the extracting agent of pure products such as phenol , cresol and xylenol.