pdf

Analysis of furfural in transformer oil using HPLC and UHPLC
In this application, measurements of furfural dissolved in transformer oil is performed with HPLC and UHPLC. Besides, two methods, solvent extraction method and solid-phase extraction method with silica gel, are applied as a pre-treatment method.

Analysis of gem substances using NFIR and microscopic IR spectrometers
In this application, Jasco reports the measurement results of 40 kinds of standard gem substances using both NFIR and Microscopic IR to obtain spectra of surface reflectance and to show that those two kinds of spectra obtained by NFIR and Microscopic IR are very well consistent.

Optical rotation of dextromethorphan hydrobromide measured using 365 nm emission line of mercury lamp
In this experiment, dextromethorphan hydrobromide was measured using polarimeter with Hg lamp (365 nm), polarimeter with Halogen lamp and interference filter (325 nm) and polarimeter with an optical rotatory dispersion attachment.

Activity measurement of trypsin using a fluorescence peptide substrate
In this application note, Jasco introduces an example in which the activity measurement of trypsin was performed using a fluorescence peptide MCA substrate.

Component analysis of an excitation-emission matrix of water samples using PARAFAC analysis
As an example of component analysis by PARAFAC, this application note shows the 3-D fluorescence measurement and component analysis results of a mixed sample (Tryptophan, humic acid and folic acid).