Analysis of water quality

Public waters

● Environmental standards items related to water contamination
● Environmental standards items related to bathing water
● Environmental standards items related to agricultural water
● Environmental standards items related to industrial water

Tap water

● Test items in accordance with the Water Supply Act

Drainage

● Waste water and underground infiltration standards items related to specified business workplace
● Sewage-related standards items
● Water standards items related to water discharge at the human waste treatment plant
● Standard value in interim guideline of discharged water containing agricultural chemicals at golf courses.

Hot spring water

● Small scale analysis of mineral spring (analysis for qualification)
● Middle scale analysis of mineral spring (analysis to determine the quality)

Others

● Water quality standards items for swimming pool water
● Water quality standards items for public bathhouse water
● Water quality examination in accordance with the Building Administration Law


General analysis laboatory	Instrumental analysis laboratory

Automatic BOD measuring device

・Automatic BOD measuring device

Automatic underwater BOD measuring device which can measure multi subjects quickly and accurately

・Auto analyzer

It can analyze underwater nutritive salts like nitrogen and phosphor accurately and promptly in accordance with the official analytical method

Auto analyzer

TOC meter

・TOC meter

It is a device to measure total carbon, inorganic carbon and organic carbon in the water whose measuring theory is “Combustion oxidation infrared spectrometry” which is widely employed as TOC measuring method in the global official analytical method including JIS.

・High-performance liquid chromatography

Each of the minor components separated using a column is detected by a detector. With the use of liquid as a mobile phase, it’s suitable for analysis of refractory compounds and thermally unstable compounds (agricultural chemicals, surfactants and etc.)

High-performance liquid chromatography

Ion chromatography

・Ion chromatography

It detects ion components like chlorine and nitric acid contained in the water. High-sensitive analysis can be performed with the use of suppressor. Analysis of cyanide compound and bromate is also possible with the use of a post column.

・Inductively coupled plasma atomic emission spectrophotometry

By giving electrical and thermal energy, the sample emits light which is separated into a spectral rays in the spectroscope. As each element shows its distinctive ray pattern, qualitative and quantitative analysis of metals can be conducted by checking the presence, absence or intensity of the spectral rays.

Inductively coupled plasma atomic emission spectrophotometry

PT-GC/MS

・PT-GC/MS

It is a device to analyze volatile organic compound (VOC, mold and others) in the water using GC-MS. Sample water is put in a dedicated test tube in which purge gas is flowed in order to force out volatile element and sent to GC-MS after holding it temporarily in the absorbent and receiving heat desorption treatment.

・ICP-MS

With the use of plasma (ICP) as ion source, it detects the emitted ion by mass spectrometry. It can measure almost all the elements on the periodic table simultaneously at sub ng/L （ppt）concentration level. Not only qualitative analysis, semi-quantitative analysis, quantitative analysis but isotope radio analysis can be performed as it is a quantitative analyzer.

ICP-MS

Reduced evaporated mercury measuring device

・Reduced evaporated mercury measuring device

It is a device to measure mercury in sample by reduction vaporizing atomic absorption method．
By reducing mercury in test water by reagent and vaporizing it, mercury content can be measured with its absorption wavelength by absorption measurement.

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