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XRF Standards: Types, Selection, and How to Use Them
XRF standards (XRF reference materials) refer to standard samples with known or certified composition, concentration, or coating thickness. They bridge the gap between raw X-ray signal intensity and accurate element concentration in X-ray fluorescence spectrometry. Standards are mainly used to establish…
How Does Sample Mass Affect DSC Results? A Practical Guide
You perform a DSC test and the curve appears incorrect. The peak is hard to discern or is broad and at a temperature you wouldn’t expect it to be. But before blaming the instrument, first check how much sample was…
XRF Coating Thickness Measurement: How It Works and What Affects Accuracy
XRF coating thickness measurement is used to determine the thickness of a coating. You’ll find it in plating QC, electronic component tests, precision part analysis. No cut, no probe marks. When the material mix and arrangement is suitable, XRF tests the…
UV-VIS Spectrometry for Protein Concentration Analysis: Methods, Accuracy & Tips
Measuring protein concentration is something that always pops up – purifying proteins, doing biological studies, routine monitoring of lab samples. The concentration of this can be found by measuring how much ultraviolet light the sample absorbs at a certain wavelength…
What Happens When a Flame Photometer Sample Is Too Concentrated?
You run a sample, and the reading comes back higher than your top standard. Or it looks fine, but the number just doesn’t feel right. In flame photometry, a sample that is too concentrated is one of the most common…
How Accurate Is XRF Analysis? 7 Key Factors That Affect Accuracy
How accurate is XRF analysis? XRF analysis can provide reliable results for many elemental analysis tasks, but there is no fixed accuracy value that applies to all samples and all applications. Actual accuracy is affected by factors such as sample type,…
How Does a Bomb Calorimeter Work? Working Principle Explained
How does a bomb calorimeter work? A bomb calorimeter determines the heat of combustion and calorific value of a sample by burning a weighed sample in excess oxygen inside a sealed oxygen bomb and measuring the temperature rise of the…
How to Use a Digital Viscometer Effectively?
A digital viscometer is a key instrument for measuring the viscosity of liquids. It supports manufacturers and labs in judging how fluids move, keeping product performance steady, and improving overall quality control. You can find these tools in chemicals, food and…
Why are Items Still Wet After Autoclave Sterilization? 6 Common Causes and Solutions
You run a full sterilization cycle. You open the autoclave and the packets are still damp. It’s a frustrating problem and one that happens more than most people expect. Wet packs following autoclave runs can be a slowdown in your…
Why Is Digestion Needed for AAS Sample Preparation? A Practical Guide
If you ever get unexpected results from your AAS analysis and don’t know why, the first place to investigate is often sample preparation. Much of the problem can come down to one often-overlooked step: digestion. The instrument is only part…
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