Wyatt Technology

Audit Trails

ASTRA and DYNAMICS provide two levels of audit trail to independently record all operator actions that create, modify, or delete electronic records. Each entry in the audit trail is time-stamped, and records the operator performing the actions, as well as the computer where the actions are performed. In the screen shot on the right, the general view of the system log is displayed, along with an experiment log.

System log

The system log is always associated with the database where the data is stored. This audit trail cannot be separated from the data associated with it. The system log records actions such as:

  • Logins, login attempts, and logouts
  • Data creation, modification, and deletion
  • Database connections and disconnections
  • Import and export of data from the database

Experiment log

Each experiment has a separate log that records all actions within the experiment that affect the data. The experiment log is always with the experiment, and cannot be reset. The experiment log records actions such as:

  • Changes to instrument configuration settings
  • Changes to analysis methods
  • Collection of data
  • Electronic signatures executed to the experiment
  • Changes in presentation methods



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Wyatt Technology is the recognized leader in light scattering instrumentation and software for determining the absolute molar mass, size, charge and interactions of macromolecules and nanoparticles in solution.

Wyatt's line of multi-angle static light scattering products couple to size exclusion chromatography (SEC-MALS), field-flow fractionation (FFF-MALS), and stop-flow composition-gradient systems (CG-MALS). Our dynamic light scattering (DLS) products operate in traditional cuvette as well as on-line and automated, high-throughput modes. We also offer unique instruments for electrophoretic light scattering (MP-PALS), differential refractometry, and differential viscosity.

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