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How to Prepare KBr Pellets for Accurate FTIR Analysis
Read moreKBr pellet preparation is one of the most widely used sample preparation methods for Fourier transform infrared spectroscopy (FTIR) when analyzing solid samples. A high-quality KBr pellet should be transparent, uniform, and free from contamination or moisture interference. If the pellet contains water, trapped air, oversized particles, or an uneven sample ratio, the final spectrum […]
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How to Troubleshoot High Background Noise in FTIR Spectroscopy
Read moreHigh background noise is one of the most common issues encountered in FTIR spectroscopy. Excessive noise can reduce the signal-to-noise ratio, distort spectral peaks, and make qualitative or quantitative analysis unreliable. In severe cases, baseline drift and atmospheric interference can completely mask weak absorption bands. To effectively troubleshoot FTIR noise problems, it is best to […]
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How Does HENCH Automatic Hydraulic Press Meet Strict Sample Preparation Standards?
Read moreIn high-precision industries such as spectral analysis, advanced material research, pharmaceutical testing, geological exploration, and quality control laboratories, sample preparation quality directly determines the accuracy of analytical data and the reliability of testing results. Many laboratories still encounter common sample preparation challenges, including uneven compaction pressure, inconsistent sample density, cracked pellets, poor repeatability, and significant […]
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Why Is a Hot Press Machine Used for Sample Preparation in the Laboratory?
Read moreIn material testing laboratories, polymer research centers, chemical analysis facilities, and new material development projects, sample preparation quality directly impacts the accuracy of experimental results and the reliability of product evaluations. Many laboratories already use conventional cold pressing equipment and often ask an important question: Why is a hot press machine still necessary for sample […]