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Dedicated analysis systems

Ready solutions for multiple applications

N-methyl carbamate pesticides

Post-column derivatization with semi-micro HPLC

This N-methyl carbamate pesticide analysis system employs OPA post-column derivatization and fluorescence detection. High-pressure gradient elution with semi-micro HPLC and highly sensitive detection using the fluorescence detector enables a maximum 18-component analysis in one injection.

Iminoctadine triacetate analysis system

Post-column derivatization and fluorescence detection

This system is designed for iminoctadine triacetate analysis. It uses a fluorescence detector to measure iminoctadine by means of ion chromatography and post-column derivatization.

Formaldehyde and acetaldehyde in tap water

1, 3-cyclohexanedione post column derivatization

This system enables high sensitivity measurements of formaldehyde and acetaldehyde at the ppb level without any pre-processing by means of post-column derivatization and fluorescence detection employing 1, 3-cyclohexanedione as a reaction reagent. This method can be applied not only to environmental water analysis, including rainwater, river water, and lake water, but also to food analysis.

Cyanide ion and cyanogen chloride

Ion chromatography post-column absorption spectroscopy

Ion chromatography post-column absorption spectroscopy is employed in the analysis of cyanide ions and cyanogen chloride. This analysis method forms cyanide by allowing chloramine T to react with cyanogen eluted from the column. The cyanide then reacts with a 4-pyridinecarboxylic acid/pyrazolone solution. The blue color obtained is measured at a wavelength of 638 nm to determine the quantity of cyanide ions and cyanogen chloride

Protein hydrolysate amino acids

OPA post-column derivatization and fluorescence detection

This amino acid analysis system uses post-column derivatization and fluorescence detection employing o-phthalaldehyde (OPA) as a reaction reagent. 20 kinds of protein hydrolysate amino acids were analysed in about 30 minutes. Changing the separation column and eluent makes it possible to support protein hydrolytic amino acids (Na column) or biologic amino acids (Li column).

Polyphosphoric acid in food additives

Post-column derivatization and visible absorption detection

This system analyzes polyphosphoric acid in food additives used in fish cake and dairy products such as ice cream by means of post-column derivatization and visible absorption detection. The detectable wavelength is 830 nm for the heteropoly blue complex that is generated by molybdenum and phosphorus. The system can measure tripolyphosphate from metaphosphate in a short time using an isocratic elution solution. It can also separate and detect polyphosphoric acid with a degree of polymerization of 10 or more

Food additive compounds

Diode array and fluorescence detection

This is a system for simultaneously analyzing 43 different food additives at once. The diode array detector and fluorescence detector selectively detect multiple ingredients. The figure shows the chromatograms obtained at each wavelength with the photo diode array detector and the fluorescence detector. Peaks 13 (isosteviol) and 28 (diphenyl) that were not separated when using either 210 or 240 nm detection with the diode array detector were selectively detected at 270 nm (peak 13) using the diode array and fluorescence (peak 28) detectors.

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