KBr 圆盘，也称为溴化钾圆盘，是一种广泛用于红外 (IR) 光谱的特殊样品制备技术。它包括将样品与精细研磨的溴化钾 (KBr) 粉末混合，在高压下压制混合物以形成透明颗粒，然后使用红外光谱对其进行分析。

二、固体分散剂：压片法最常见是 溴化钾 KBr压片，KBr作为固体分散剂，高压下易于晶型转换，且中红外区基本无吸收，KBr需采用光谱纯，对KBr干燥可翻阅我的前文《水和二氧化碳红外光谱》。除了用KBr外，还可不可以用其他固体分散剂？

KBr（溴化钾）圆盘法是红外（IR）光谱学中广泛使用的一种技术，用于制备固体样品以供分析。 这种方法是将少量样品与 KBr 粉末混合，在高压下将混合物压成透明圆盘，然后使用红外光谱分析圆盘。 KBr 盘法尤其适用于分析难以溶解或不适合其他制备技术的固体样品。 KBr 圆片的透明度允许红外辐射通过，从而能够检测样品的分子振动，并提供有关其化学结构的宝贵信息。 KBr 盘法的主要目的是制备固体样品，以便进行红外光谱分析。 这种方法尤其适用于不溶于普通溶剂或 …

2022年5月10日 · To summarize, KBr is optically transparent in the fingerprint region of IR spectroscopy and hence is used as a carrier in the form of a disk or pellet. Structural determination of sensitive biomolecules like proteins was possible by employing FTIR and the KBr disk technique, especially in determining their primary and secondary structures.

Powders, being examined by Infrared Spectroscopy, in transmission, are generally prepared by mulling in liquid paraffin (Nujol), or by grinding with potassium bromide (KBr) powder. The latter is then pressed into a disk.

A KBr disc, also known as a potassium bromide disc, is a specialized sample preparation technique widely used in infrared (IR) spectroscopy. It involves mixing a sample with finely ground potassium bromide (KBr) powder, pressing the mixture under high pressure to form a transparent pellet, and then analyzing it using IR spectroscopy.

KBr（溴化钾）圆片广泛应用于红外（IR）光谱分析，因为它对红外辐射是透明的，并且为制备固体样品提供了一种简单有效的介质。KBr 具有化学惰性，易于处理，与样品混合后可形成清晰、均匀的基质，从而获得准确、可重复的红外光谱。

KBr-disc方法的使用不必仅限于固体。

KBr (potassium bromide) discs are widely used in IR (infrared) spectroscopy because they are transparent to IR radiation and provide a simple, effective medium for preparing solid samples. KBr is chemically inert, easy to handle, and forms a clear, homogeneous matrix when mixed with the sample, allowing for accurate and reproducible IR spectra.

The KBr (Potassium Bromide) disc method is a widely used technique in infrared (IR) spectroscopy for preparing solid samples for analysis. This method involves mixing a small amount of the sample with KBr powder, pressing the mixture into a transparent disc under high pressure, and then analyzing the disc using IR spectroscopy.