reference sample
3.This paper analyses the significance of utilizing the1S014000 serial standards and focuses on the 1S014001 EnvironmentManagement System, and just based on the successful case operated inoversea, The standard procedure of operating 1S014001 EMS has beendesigned which supplies the strong reference and sample for Chinaconstruction enterprises to establish the 1S014001 EMS.
9.It will be given an important reference value to explain the best testing position, best testing distance and sample status and give the same testing standards. The main absorbance positions of fruit are found at the wavenumber of 10176 cm, 8313 cm~(-1), 6860 cm~(-1), 5172 cm~(-1) and 4321 cm~(-1) and there is no obvious different with different samples.
10.After reference solution has been formulated and sensitivity has been adjusted and tested according to above mentioned method (3), take appropriate amount of test sample solution and reference solution, blend samples separately; unless otherwise specified, recording time of the former should be 2 times of retention time of chromatographic peak of main component, measure peak area of each impurity on the chromatograph chart of test sample solution, and compare with peak area of main components of reference solution, then calculate content of each impurity accordingly.
