~ 7 min

Does the QCM fundamental frequency matter?

In QCM instrument specifications and experimental descriptions, there is always a reference to the fundamental frequency. But does the fundamental frequency really matter? Here we sort out the details and explain how and why it matters in a measurement situation.

> 4 min

The Sauerbrey equation or viscoelastic modeling? – what happens if you use the wrong method?

Quantifying QCM mass, there are two different approaches to choose from, the Sauerbrey equation or viscoelastic modeling. But what if the wrong method is applied, what happens then? How critical are the consequences? Here we describe what happens if the wrong quantification approach is used.

> 4 min

Four steps to prevent temperature related problems in QCM measurements

One of the key factors to achieve reliable and reproducible QCM measurements is temperature stability. Here we list the top four factors that will help you eliminate temperature induced artifacts in your QCM data.

~ 6 min

Why are overtones important in QCM?

On the topic of QCM, the different resonance harmonics, i.e., the fundamental and the overtone harmonics, are often subject to discussion. So, what is the deal with the overtones? Are they really needed, and if they are, when and why are they important?

> 3 min

Key aspects to consider when reading a QCM specification

When you are to invest in a new QCM-system, there are several aspects of the instrument to evaluate such as price, experimental capabilities and data quality. Price is straightforward, but how about the other two factors? Here we guide you how to asses experimental capabilities and data quality.

< 5 min

The Sauerbrey equation or Viscoelastic modeling? – how to assess which method to use

You have finished a set of successful QCM experiments, and it is time to analyze the data. Mass and thickness quantification are on the to-do list, and you must decide between the Sauerbrey equation and viscoelastic modeling. Here we present guidelines on how to evaluate which method to use.

7 min

Why temperature stability is critical in QCM-measurements

Temperature stability is key to achieve reliable and reproducible QCM measurements. But why is a stable temperature so important? And how will temperature variations affect your measurements? Here we explain the causes and effects of temperature related artifacts in QCM measurements.

~ 6 min

What to consider when analyzing combined QCM-D and ellipsometry data

QCM-D and ellipsometry are two surface sensitive real-time technologies that can be used in combination to give synergistic effects. To make to most of the combined output data, there are some aspects to consider when setting up the combined experiment and when analyzing the captured data.

> 5 min

What is the difference between QCM mass and Ellipsometry mass?

The mass extracted by QCM-D and ellipsometry are often not the same. So, what is the difference between these masses, and why are they not equal?

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