March 16, 2016

Does weather affect pipetting? YES!

This study uses a two factor design (temperature and humidity) to investigate volumetric performance (precision and trueness) at environmental conditions from 15 °C to 30 °C and 30% to 80% relative humidity. Nine environmental conditions were tested, the mid point, four corner cases and four edge cases. Replicate testing was performed at the mid point and corner cases.
October 28, 2015
Lean lab

In-House Pipette Calibration: The Lean Way

When your tests can impact criminal cases, help labs confirm that a sample belongs to a specific patient, or help verify or refute paternity, data quality matters. Your answers can't be wrong. Knowing that your pipettes are performing within specifications is a critical part of ensuring data quality, but for Sorenson Genomics, managing pipette calibration was a challenge.
September 23, 2014

Minimizing Liquid Delivery Risk: Pipettes as Sources of Error

Research shows that up to 30 percent of pipettes and other liquid delivery devices currently in service are not performing within expected tolerances at any given moment. The risk of non-performing liquid delivery devices is compounded by the ever smaller volumes typically handled in today’s laboratories. This means that volumes that are inaccurate by just a few microliters can have significant effects on results.
April 17, 2014
improved pipetting technique

Improved Pipetting Technique: An “Out-of-the-Box” Solution to Reduce Manual Pipetting Errors

Working with Artel, Takeda developed an analyst qualification program using the same technology it uses to verify and calibrate its robotic liquid handlers. The implementation of the comprehensive program not only reduced assay failures but also helped the company transfer assays from bench to automation by using the same measurement standard for each phase of the process.
March 15, 2014

Lab Report 1: How Many Data Points

Human beings are creatures of habit We often seek stability and continuity and are wary of change. However, inspection, evaluation, and subsequent change are often necessary […]
February 20, 2014
Defining Accuracy, Precision and Trueness

Lab Report 4: Defining Accuracy, Precision and Trueness

Language influences thinking and careful use of words when evaluating data allows us to understand how best to improve laboratory accuracy. Accuracy is a particularly important concept […]
February 10, 2014
Artel's suggested initial tolerance limits

Lab Report 5: Setting Tolerances for Pipettes in the Laboratory

The performance of mechanical action pipettes must be tested periodically to ensure accurate liquid delivery. The results of such testing then may be compared with pre-established tolerances, […]
February 1, 2014
Pipette Failures in the Laboratory

Lab Report 6: Calibration Frequency for Pipettes

Understanding how pipettes fail Silent Failures Mechanical action pipettes, unlike the original glass pipette, contain many internal parts. Some pipette failures are evident, either to the […]
October 23, 2013

8 Easy Steps for Performing Pipette Preventive Maintenance

Pipettes are precision devices that require care for consistent results. Performing preventive maintenance routinely will help to minimize malfunctions and keep your instruments in good operating condition. Depending […]
October 22, 2013
Pre-training skills assessment

Lab Report 7: Facilitating Assay Transfer by Controlling Liquid Handling Variables

Assay transfer is one of the most complex activities in laboratories today. Successful assay transfer ensures that new results are comparable to historical data. Whether it […]