FTIR Sample Preparation

Instructor: Dr. Brian C. Smith

Back to FTIR Training Home Page

Course Length: 8 hours

Why take this course?

·         Save time and money by choosing the right sampling technique the first time

·         Learn to properly analyze all your samples including solids, powders, liquids, and polymers

·         See how Attenuated Total Reflectance (ATR) makes analyzing most samples fast and easy


I. Transmission Sampling

A. Advantages & Disadvantages


II. Transmission Sampling for Solids

A. KBr Pellets

1. Sample Prep.

2. Pellet Problems

B. Mulls (Mineral/Nujol)

1. Preparation

2. Eliminating Oil Bands


III. Transmission Sampling for Polymers

A. Casting Films

B. The Heat & Pressure Method


IV. Transmission Analysis of Liquids and Gases

A. Capillary Thin Films

B. Sealed Liquid Cells

C. Gas Cells


V. Introduction To Reflectance Sampling

1. Advantages

2. Disadvantages


VI. Specular Reflectance


VII. Diffuse Reflectance (DRIFTS) for Solids and Powders

A. Sample Prep.

B. Applications

C. Abrasive Sampling


VIII. Attenuated Total Reflectance (ATR): A Technique for Many Samples

A. Theory & Background

B. Depth of Penetration

1. Depth Profiling

2. Quantitative Analysis

C. Applications of ATR

1. Polymers

2. Semi-Solids: Gels, Waxes, Pastes etc.

3. Organic & Aqueous Liquids

4. Powders