Copyright 2020 Malvern PanalyticalĢ System verification using ZTS1240 The following guidance focuses on verification of your system using the Zeta Transfer Standard in combination with a folded capillary zeta cell, since use of a new, correctly prepared capillary cell is the most robust format avoiding any possibility of the cell being contaminated by previous use, or not functioning correctly through some other cause. Do not allow the standard to freeze and keep away from direct contact with any exposed cooling elements within the refrigerator to avoid accidental freezing. Short term storage in a cool place is acceptable and the Zeta Transfer Standard ships at ambient temperatures, however the recommended storage conditions are in a refrigerator ( o C). Storage CAUTION! Make sure that use of this standard is in accordance with the safety data sheet (SDS) and applicable local regulations. Please contact your supplier with details of the affected batch number, your order number and date of purchase for replacement. If this should occur the standard should be deemed unsuitable for use and discarded as per your local regulations.
Please check this upon receipt If the Zeta Transfer Standard has been exposed to temperatures of 49 o C or above the temperature tell-tale will indicate so with three or more black, filled, circles. To confirm that this has not occurred during shipping, a temperature tell-tale label is provided on the outer packaging. Exposure to high temperatures should be avoided. Upon receipt of your box of 10 syringes of Zeta Transfer Standard: Check the integrity of the packaging and that the contents have not leaked. For details on how Malvern Panalytical validates the zeta potential transfer standard and how upper and lower limits are established please see the document Validation of ZTS1240 Zeta Potential Transfer Standard available from the Malvern Panalytical website. It is primarily intended for use with our folded capillary zeta cells, DTS1070, but may be used with other zeta capable cell types that are supported by your Zetasizer Nano system. ZTS1240 is supplied in 10 ml ready-to-use syringes and as such does not require any sample preparation prior to use. The zeta potential transfer standard (ZTS1240) is provided to help you with on-going zeta potential measurement Performance Verification of your Zetasizer Nano system(s). However, regular verification that your system is operating as intended is recommended.
1 ZTS1240 VALIDATE YOUR ZETASIZER NANO SERIES SYSTEM Introduction Electrophoretic Light Scattering (ELS) is a first principles measurement and as such calibration is not required.