Do you know of the fact that there are in general use a large quantity of agricultual chemicals on the tea production?
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Agricultural chemical residue analysis laboratory


Analysis laboratory
In cooperation with Shimadzu Corporation, a leading manufacturer of analytical instruments in Japan, we have set up a laboratory equipped with analyzers to check agricultural chemical residues in tea. We perform strict quality checks on all the materials before shipment in order to ensure only 100% chemical-free teas will be provided to our customers.


Instruments used for analysis

Gas Chromatograph/Mass Spectrometer (GC/MS)

Model Gas Chromatograph GC-17A
Analysis method Mass Sspectrometer@GCMS-QP5050A
Simultaneous multi-components analysis
by SIM method(a fixed quantity)
Components
@to be analyzed
@simultaneously
20 components (as of May, 2000)
Analysis ingredient Organic Lynn systems (CHLORPHENAPYR, DDVP, etc.)
Organic chlorine system insecticide
iDICOFOLEChlorothalonil@etc.jothers




Instruments used for analysis

Gas Chromatograph/Mass Spectrometer
[Gas Chromatograph/Mass Spectrometer]
The solution of extracted tea components injected into Gas Chromatograph is separated into each component (such as a chemical and a vitamin). Molecular ions of each separated component are detected by Mass Spectrometer and the components are specified based on thus obtained data.
 
[SIM (Selected Ion Monitoring) method]
SIM method selectively detects the ions characteristic to agricultural chemicals and analyzes them with high sensitivity.
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