Absorbance ratio-derivative mothed的用法和样例：
- Absorbance ratio derivative method was developed for the simultaneous determination of glyoxal(GLY) and glyoxylic acid(AGLY).
- absorbance ratio derivative method
- Multiwavelength absorbance ratio difference spectrophotometry as a new methodto determine two-component mixed system was used to assay caffeine and sodium benzoateinjection.
- In this paper,the simultaneous dertermination of sodium salicylate,antipyrine and caffeine by UV absorbance ratio coefficient multiplication method was suggested.
- Methods The absorbance ratio of 19 roots from Amorpha fruticosa L.and 2 confusion roots were measured by UV spectrometry and used as the evidence of identification.