The ATR Objective Microscope Accessory permits microscopic non-destructive surface analyses of strong-IR absorbing materials, including organic and inorganic materials. It allows analysis of microsamples with little or no sample preparation, often in-situ. Micro-ATR is useful in material characterization of samples, such as polymers, soft rubbers, coatings, coated papers and biomaterials.
The standard ATR objective uses a high refractive index ZnSe internal reflecting element (IRE), commonly referred to as the ATR crytal. Ge, Si and diamond crystals are also available to allow customization of penetration depth and hardnesss appropriate to the application. The ATR Objective Microscope Accessory includes two ZnSe crystals in its standard configuration.
The ATR Objective's innovative design features three viewing modes: Survey, which allows direct viewing of the sample (through the ZnSe and diamond crystals only) for proper positioning; Contact, to ensure contact of the area of analytical interest; and ATR for the collection of ATR spectra. For irregularly shaped samples, the Gimbal Stage option facilitates optimum sample positioning.
The ATR Objective is available for Nicolet Continuµm, Momentµm, IRµs, Nic-Plan, IR-Plan Research, IR-Plan Advantage, Analytical and IR-Plan Laboratory Microscopes. Use of the ATR Objective with the IR-Plan Laboratory Microscope requires the purchase of a four-place nosepiece.
Applications
• Qualitative analysis
• Microsamples
• Micro-contaminant characterization
• Polymers
• Forensics samples
• Corrosive liquids and aqueous solutions
• Coatings on non-reflecting substrates
Features
• Depth of penetration ranges from 0.6 µm to 2.0 µm at 1,000 cm-¹, depending upon crystal selection and refractive index of the sample
• Non-destructive, analyzes samples in-situ
• Operates in three different modes: Survey, Contact & ATR
• Fixed pathlength
• Easily interchangeable crystals without the need for alignment
All ATR Objective microscope accessories require installation and training by trained personnel. Please call for details.