Smart iTR™ Attenuated Total Reflectance (ATR) Sampling Accessory
Product Description
Eliminate sample preparation while retaining exceptional throughput with the ultra-high-performance, versatile Smart iTR Attenuated Total Reflectance (ATR) Sampling Accessory. Primarily designed for use with a single bounce diamond crystal, the Smart iTR Accessory also offers other options for full configurability. It provides exceptional sensitivity and IR throughput.
- Ideal for the analysis of solids, liquids, pastes and gels
- Available with different crystals for diverse sampling needs
- Single reflection crystal for general purpose material identification
- Optional three reflection crystal for increased sensitivity
- Optional specular plate gives extra flexibility when analyzing coatings on reflective materials
- Crystal plates are pinned in place with quick-release mounting for easy removal for cleaning or swapping and reproducible insertion with no alignment required
- ATR crystal plates are backed with a ZnSe focusing optic for optimal performance
- Large top plate accommodates most samples
- PTFE coated plate lifts clear easily for simple clean-up
- Precision machining and an nonreactive gasket provide a tight interface between the top plate and the crystal housing, so spills are not a problem
- High pressure clamp calibrated to deliver up to 10,000 psi of pressure and comes with interchangeable tips for hard, soft and pellet shaped samples
- Active Sample Area: 1.5mm for the single bounce ATR and 6mm for the 3 bounce ATR
- Specular Plate: Spectral range dependent on spectrometer; incident angle is 45°
The Smart iTR accessory can be ordered with three common ATR crystals fixed in stainless steel as standard: diamond, ZnSe and germanium. Each crystal performs strongly under specific circumstances.Diamond ATR Crystal
Features
- Inert and robust — excellent for the analysis of hard, abrasive, reactive, caustic or corrosive materials
- A multi-purpose ATR with a depth of penetration of over 2μm at 1000cm–1 and is used with a wide variety of samples
- Five-year warranty provided
- Configuration can be validated
- Disadvantage — intrinsic absorbtion from approximately 2300 to 1800cm–1
Specifications
- Low wavenumber cutoff: 650cm–1 (due to ZnSe lens)
- Depth of penetration: 2.03μm at 1000cm–1
- Refractive index: 2.4
- Useful pH range: 1 to 14 (ZnSe 5 to 9)
- Incident angle: 42°
ZnSe ATR Crystal Features
- Most common ATR crystal — provides an excellent performing, lower cost option for general analyses
- Offers similarly outstanding throughput and a depth of penetration similar to diamond
- Can be used for a wide variety of samples, but is soft and not as chemically inert as the other crystals
- Over time it can be etched by acids and scratched by hard samples, which will eventually reduce sensitivity
- Configuration can be validated
Specifications
- Low wavenumber cutoff: 650cm–1
- Depth of penetration: 2.03μm at 1000cm–1
- Refractive index: 2.4
- Useful pH range: 5 to 9
- Incident angle: 42°
Germanium ATR Crystal
Features
- Hard and inert (although not as robust as diamond) with a high refractive index
- Provides a much shallower depth of penetration, making it ideal for highly absorbing or scattering samples such as carbon-black containing rubbers
- Provides huge performance through the mid-IR range, with upwards of 50% transmittance
- Offers a limited range, but good chemical resistivity to both acids and bases
Specifications
- Low wavenumber cutoff: 700cm–1
- Depth of penetration: 0.67μm at 1000cm–1
- Refractive index: 4.0
- Useful pH range: 1 to 14
- Incident angle: 42°
Silicon ATR Crystal
Features
- Hard, with a high refractive index
- Useful for strong absorbers or abrasive samples
- Suitable for temperature studies because it withstands thermal shock
Specifications
- Low wave number cutoff: 700cm–1
- Depth of penetration: 0.84μm at 1000cm–1
- Refractive index: 3.4
- Useful pH range: 1 to 12 Incident angle: 42°
Compatible with:
The Smart iTR Accessory is compatible with the Thermo Scientific™ Nicolet™ iS™ 10 FT-IR Spectrometer, the Thermo Scientific™ Nicolet™ iZ™ 10 Auxiliary Module, and the Nicolet 6700 and Nicolet 8700 FT-IR Spectrometers.
Recommended for:
- Most solids
- Liquids ranging from pH 1 to 14
- Acidic or alkaline materials
- Fibers
- Hard or oddly shaped samples
- Abrasive, caustic or corrosive materials
- Large or small samples
- Paint chips