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ZHAN Ke-qin, ZHAN Jun-hong, ZHU Mei-hua, SHAN Guang-zhi. Determination of content of phenol in ear-drops by differential spectrophotometry[J]. Journal of Pharmaceutical Practice and Service, 2002, (2): 94-95.
Citation:
ZHAN Ke-qin, ZHAN Jun-hong, ZHU Mei-hua, SHAN Guang-zhi. Determination of content of phenol in ear-drops by differential spectrophotometry[J]. Journal of Pharmaceutical Practice and Service, 2002, (2): 94-95.
Determination of content of phenol in ear-drops by differential spectrophotometry
OBJECTIVE To establish differential spectrophotometry method for determining phenol and to eliminate interference of excipient.METHODS Determining ΔA different ultraviolet spectrum of phenol in 0.1mol·L-1NaOH and water,detection wave length 288nm.RESULTS The recovery was 99.8%,RSD=0.12%.CONCLUSION The method is simple and accurate.
Abstract: OBJECTIVE To establish differential spectrophotometry method for determining phenol and to eliminate interference of excipient.METHODS Determining ΔA different ultraviolet spectrum of phenol in 0.1mol·L-1NaOH and water,detection wave length 288nm.RESULTS The recovery was 99.8%,RSD=0.12%.CONCLUSION The method is simple and accurate.
ZHAN Ke-qin, ZHAN Jun-hong, ZHU Mei-hua, SHAN Guang-zhi. Determination of content of phenol in ear-drops by differential spectrophotometry[J]. Journal of Pharmaceutical Practice and Service, 2002, (2): 94-95.
Citation:
ZHAN Ke-qin, ZHAN Jun-hong, ZHU Mei-hua, SHAN Guang-zhi. Determination of content of phenol in ear-drops by differential spectrophotometry[J]. Journal of Pharmaceutical Practice and Service, 2002, (2): 94-95.
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