Abstract:
A rapid, simple and reliable method and device for diagnosing diabetes mellitus under no influence of diet. The method for diagnosing diabetes mellitus involves injecting a saliva sample from a patient suspected of having diabetes mellitus into a stationary phase in a separation column, thereafter eluting a phosphate buffer as an eluent to separate analytes contained in the saliva sample, subsequently detecting the individual separated analytes with a UV detector and electrostatic ion chromatography to produce a chromatogram, and then diagnosing diabetes mellitus based on the presence or absence of a chromato-peak of the diabetes mellitus-specific component. A zwitterionic stationary phase is employed as the stationary phase and contains a support carrier and a zwitterionic charged layer formed by coating a compound having an ammonium salt portion, a sulfonate ion portion or carboxylate ion portion on the surface of the support carrier.
Abstract:
The present invention relates to a method for separating and analyzing ions by electrostatic ion chromatography using water as the eluent not only for the analysis of the group of anions or cations but also for the simultaneous and simple analysis of the two groups of analyte ions. A solid phase packed in a separation column to be used therefor is a zwitterionic stationary phase, comprising a support carrier and a zwitterionic layer formed by directly or indirectly coating or immobilized a compound having both of a positive-charge portion and a negative-charge portion (an ammonium salt or amide portion, and a sulfonate ion portion or carboxylate ion portion) on the surface of the support carrier for detecting given separated ions by ultraviolet method etc. And another present invention relates to a method for separating and analyzing inorganic and organic components etc. simultaneously by multi-functional liquid chromatography.
Abstract:
The present invention relates to a rapid, simple and reliable method and a device for diagnosing rheumatism under no influence of diet. The method for diagnosing rheumatism includes injecting the urine sample from a suspected case of rheumatism into one end of a solid phase packed in a separation column 3, thereafter eluting a phosphate buffer as an eluent to separate the analytes contained in the urine sample, subsequently detecting the individual separated analytes with a detector 4 to confirm that a predetermined chromatogram is demonstrated by liquid chromatography, the chromatogram developing a higher chromato-peak of the rheumatism-specific component contained in the urine of the patient compared with a chromato-peak of non-rheumatic individual, and establishing the diagnosis of rheumatism on the basis of the presence of the higher peak, wherein a negative/positive charged micellar stationary phase is employed as the stationary phase, including a support carrier and a zwitterionic layer formed by directly or indirectly coating CHAPS and/or CHAPSO micelle on the surface of the support carrier.