Home / Standards / GB/T 23749-2009 GB/T 23749-2009 Determination of sodium copper chlorophyllin in foods—Spectrophotometric method 食品中叶绿素铜钠的测定 分光光度法 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A