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EC number: 950-278-0 | CAS number: -
Measurement of Test Temperature
The test temperatures in the incubator at the start and end of equilibration were shown in following table.
At the start of equilibrium
At the end of equilibrium
The pH measurement results for soluble fraction samples were shown in following table.
TC, IC and TOC in blank sample and soluble fraction
The results of TC, IC and TOC in blank sample and soluble fraction are shown in the following tables.
Test substance concentrations in blank sample:
*: Measured TC concentration was below the lower limit of quantification (< 1 mgC/L).
**: Measured IC concentration was below the lower limit of quantification (< 1 mgC/L).
***: As measured TC concentration and / or IC concentration were below the lower limit of quantification, TOC concentration could not be calculated
Test substance concentrations in soluble fraction:
From the above table, since TC and / or IC contained values below the lower limit of quantification, it was not possible to calculate the concentration of TOC (mgC/L) in the soluble fraction by subtracting the IC concentration from the TC concentration. Therefore, in order to confirm the difference between the blank sample and the soluble fraction of each day, the Student's t-test was performed using the area value of TC.
For statistical analysis of data, commercially available statistical processing software Statlight (Yukms Corp., Tokyo) was used. The level of statistical significance was set at 5%. As a result, no significant difference was found between the TC area value of the blank sample and that of the soluble fraction in all days.
The water solubility test of the test substance was estimated by the flask method. In order to confirm the concentration of the test substance in water, TOC measurement was performed. However, the TOC concentration for the soluble fraction could not be calculated since the TC concentration and/or IC concentration were below the lower limit of quantification (TC: < 1 mgC/L to 1.9651 mgC/L, IC: < 1 mgC/L). Furthermore, there were no significant difference between the TC peak area of blank sample and that of soluble fraction. Therefore, it was considered that water solubility of the test substance is low.
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