The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Sediment was collected from Lianhuashan Reservoir in Dongguan city. The method of analyzing HCHs by GC-ECD was established. Recovery rate was between 91.40% to 106.33%, standard deviation was 0.0356 to 0.0648, relative standard deviation was 0.0358 to 0.0651. The results show that the detectable ratio of HCHs were high, especially in the water deep area, with various concentrations of HCHs in different...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.