Flexible Weighing Solutions – Essential For Top Research

This common, yet essential, piece of equipment plays a major role in scientific discovery as scientists and students need to use the balance every day. Therefore, choosing the right balance to meet application requirements is crucial.

Highly repeatable sample preparation for chemical synthesis

One-step dosing into the flask thanks to the ErgoClip flask holder

The balance plays a key role in research applications, including the preparation of samples to be used for subsequent analyses (e.g. preparing stock solutions) and for applications, such as chemical synthesis followed by stoichiometry determination. In order to draw reliable conclusions from an experiment, the accuracy of the balance must remain in accordance with weighing procedure requirements since measurement uncertainty must be kept to a minimum. For example, if 20 mg of an ingredient must be weighed with a 1% tolerance, a balance with 0.01mg resolution is required. The Excellence XS105DU or XA105DU are ideal for this application providing excellent repeatability.

ErgoClip container holders are accessories for Excellence Analytical Balances which allow different shaped tare containers (e.g. plastic tubes or round bottom flasks) to be held securely on the balance. The precise positioning of the tare container makes it possible to dose into the container in one easy step, increasing efficiency, saving valuable time and minimizing sample loss.

Additional weighing solutions that provide even more balance flexibility include the conversion into a pipette-testing set-up by simply installing an evaporation trap.

Straightforward buffer preparation even with a magnetic stirrer

MS3002S, robust and reliable everyday operation For the preparation of buffer solutions or other media (e.g. for growing bacteria), a 0.01g resolution balance is often used for weighing larger beakers and Erlenmeyer flasks. The full metal housing of the New Classic MS3002S Precision Balance is designed to withstand the aggressive solvents and dusty environments of challenging weighing environments with the added benefits of an easy-clean design and a user-friendly interface.

XS4002S with Magnetic Protection Shield Weighing Pan When the weighing application calls for the use of a magnetic stirrer, the Magnetic Protection Shield (MPS) weighing pan offers the ideal solution. The MPS weighing pan protects the balance from the influence of the magnetic field to ensure results are accurate and repeatable. The Excellence XS4002S or XA3002S, equipped with the MPS, are particularly suited to weighing samples containing a magnetic rod.

  

A solution for every application

Careful application analysis is essential in order to ensure that the correct balance is selected and performance factors, such as accuracy, repeatability and minimum weight are critical. However, METTLER TOLEDO offers a wide range of dedicated weighing solutions, a few of which are highlighted above, designed to make weighing processes easier and balances more versatile.