Automation of Sample Preparation Steps using a Robotic X-Y-Z Coordinate Auto sampler with Software Control

Abstract

A robotic X-Y-Z coordinate autosampler commonly used for sample introduction in GC or HPLC can be used to perform a wide variety of sample preparation techniques using a single instrument and controlling software. The MAESTRO software enables control of an expanded list of sample preparation techniques such as derivatization, addition of an internal standard, saponification, esterification, analytical weighing, filtration, and solid phase extraction. In addition to ease of use and intuitive windows-based setup, the software includes tools to automate and optimize timing parameters ensuring efficient sequence creation and maximum sample throughput. The sampler can be configured as part of a GC or LC system or can be configured as a benchtop workstation.

In this paper, we discuss various sample preparation techniques available when using the robotic autosampler in conjunction with the MAESTRO software. Examples of automating techniques such as solid phase extraction, Twister solvent back extraction for HPLC, and steps such as sample weighing are shown.