Benefits of Gravimetric Reference Standard Preparation Using an XPR Automatic Balance
METTLER TOLEDO has developed the XPR Automatic Balance, setting a new standard for weighing and dispensing in the lab. It offers intelligent functions, automatically calculating the amount of solvent required to achieve a desired concentration, to support accurate sample and standard solution preparation.
1. Easy Operation and Multi-Purpose Use
Thanks to its innovative design, the XPR Automatic Balance can be used for automated and manual weighing, lowering your initial investment.
2. Higher Accuracy, Precision, and Reproducibility
Ensuring that reference standards are accurately prepared and recorded is critical to achieving reliable analytical results. The XPR Automatic Balance achieves maximum accuracy and reliability during sample preparation. The automated method leads to a significant reduction in errors (in concentrations or data handling), especially when preparing multiple solutions simultaneously. Sample rework is greatly reduced, thanks to the accuracy and reliability of the automated gravimetric process. In addition, the minimum weight can be reduced by up to 30 percent. Gravimetric addition of the correct solvent quantity enables the exact target concentration to be achieved every time. This helps to avoid deviations and OOS errors when preparing solutions and helps ensure compliance with USP 841. Thanks to a stable automatic process, you can benefit from the highest reproducibility.
3. Efficient Substance Use—Cost Savings
Analytical methods may require 20 to 50 different reference standards. The quantity to be weighed depends on the number of batches to be analyzed and the analytical method. If substances are weighed directly into the target vessel, such as a volumetric flask, the risk of substance loss during the sample transfer is substantially reduced. Therefore, both the precision and reproducibility of the analytical method are significantly higher. The XPR Automatic Balance allows you to scale down and reduce the amount of substance weighed to make up the reference standard solution thanks to the lower minimum weight of the automated system.
4. Improved User Protection
Automated reference standard preparation can improve operator safety and mean less time wearing protective clothing and equipment. An automated approach minimizes a user’s contact with the substance because the dispensing module enables the direct weighing of a substance from an enclosed dosing head into a vial.
5. Less Rework and Easy Cleaning—Time Savings
Using the XPR Automatic Balance, reference standards for analytical methods can be prepared accurately and efficiently.
- Avoid manual weighing errors that lead to incorrect analyses and the need for expensive, time-consuming, and unnecessary rework
- Reduce cleaning time—lower spillage risk, easier to clean, and no washing of volumetric flasks
6. Error-Free Documentation, Process Security, and Traceability
When you use the XPR Automatic Balance in conjunction with LabX laboratory software, you’ll gain automatic documentation, process security, and traceability. Create workflows (SOPs) with LabX and access them conveniently with just one click. LabX guides you through your SOP directly on the balance terminal so every operator follows the same procedure. Complete raw data and metadata are collected and stored in a secure database in accordance with ALCOA+ standards.
