第八块腹肌
第13楼2014/08/14
If AccuStandard has a product with known or suspected solubility problems that can be corrected by sonication, “sonicate” is written on the label. An example of when this could happen is with products that may precipitate out of solution when they get cold. During shipment we cannot control the temperature of the products, and some of the less soluble analytes may start to precipitate out. This precipitation may be so slight that it cannot be detected visually, however, could affect the outcome of the analysis. If you receive a product that says sonicate, the solution should be warmed to room temperature and then the sealed ampule should be sonicated in an ultrasonic bath for approximately fifteen minutes. Invert the ampule several times to achieve homogeneity, allow the sample to return to room temperature, and then the standard is ready for use.
Regards,
AccuStandard, Inc.
第八块腹肌
第14楼2014/08/14
貌似并没有规定储存条件。如jiangwibo所说,使用之前要放至室温,如果写了超声,还要超声一下。