PIKE and JASCO | Transmission Accessories
Various accessories for transmission
Transmission remains one of the most sensitive methods used in mid-IR spectroscopy. However, correct sample thickness is essential for obtaining good spectra. The wide range of sampling accessories has been designed for the comprehensive analysis of gases, liquids and solid samples.
For gas analysis, pathlengths range from 5 cm up to 20 m for ppm sensitivity. Various cell and window designs are available for the measurement of aqueous and non-aqueous liquids. Films and other solids are measured using film holders, KBr pellet presses and other accessories designed for the transmission of light through a prepared sample.
Pike Accessories
1. Demountable Cell
The Press-On The Press-On Demountable Liquid Cell is recommended for fast and convenient qualitative analysis of viscous liquids and mull samples.
Demountable Liquid Cell is recommended for fast and convenient qualitative analysis of viscous liquids and mull samples.
The Press-On Demountable Cell is available in 2 sizes: 25-mm and 32-mm diameter, and has optional Teflon spacers to assist with sampling pathlength.
A wide variety of window types and spacer pathlengths are available to cover near-IR, mid-IR and far-IR spectral regions and sample composition from organic to aqueous.
2. THE MAGNETIC FILM/PELLET HOLDER
Used to mount KBr pellets and thin polymer films.
Its components include a steel plate and flexible magnetic strip.
The holder is designed to support 13-mm KBr pellets and films less than 0.5-mm thick.
3. Hand Press
The Hand Press is an ideal solution for laboratories that require only occasional preparation of KBr pellets. The Hand Press is an efficient, reliable and inexpensive tool which simplifies making small pellets. It consists of a long stainless steel barrel and movable stage controlled by a lever capable of applying high pressure to the KBr/powder mixture.
The Hand Press comes complete with three standard die sets (7-, 3- and 1-mm).
4. Pixie Hydraulic Press
The Pixie is a portable, manual, hydraulic press for making high-quality KBr pellets.
With the press’ ergonomic design, pellet making is easy and effortless. Pixie’s small footprint makes it ideal for limited bench-space environments and glove boxes, and for storability. KBr pellets for IR transmission measurements are required by a number of standardized procedures, including some USLP and ASTM methods.
Advantages of pellet making are spectral reproducibility and the ability to deal with relatively difficult or limited-mass samples The pellet preparation involves loading of the powdered sample into the die chamber, placement of the upper anvil in the press and application of hand pressure to the lever (this is sufficient to provide clear, high-quality KBr disks). The Hand Press is equipped with a platen position dial for adjustment of the force applied to the die for reproducible sample preparation.
5. Hydraulic Press
The CrushIR is an advanced hydraulic press for making excellent-quality KBr pellets and thin films for transmission FTIR analysis. With its integrated digital force reading, the CrushIR™ provides exceptional reproducibility.
The PIKE CrushIR features a small footprint and includes a transparent protective shield, making it safe for operation in a busy laboratory environment. Access for vacuum hose and other utilities is made through a port in the rear of the press.
