7John R M. Sampling and Storage of Materials for Trace Element Analysis[J]. Int. J. TrAC Trends in Analytical Chemistry, 1983, 2(5): 116-118.
8John R M, Richard M L. Selection and Cleaning of Plastic Containers for Storage of Trace Element Samples[J]. Int. J. Anal. Chem., 1977, 49 (14): 2264-2267.
9Duncan P H L, Roy M H. Cleaning Methods for Polythene Containers Prior to the Determination of Trace Metals in Freshwater Samples[J]. Int. J. Anal. Chem., 1981, 53 (2): 345-350.
10Cyrus F. Preservation of Dilute Mercury Solutions[J]. Int. J. Anal. Chem., 1974, 46(1): 99-102.
