Real Crystal FTIR & IR Sample Cards

Product Description

NATIONALs new Real Crystal IR sample cards provide a conveniently mounted non-absorbing substrate for qualitative infrared analysis. They are ideal for liquids, mulls, film casting from solutions and pyrolosis samples. The 2" x 4" cards are available with 9.5mm, 15mm and 19mm clear apertures and they will fit in the universal slide mount of any spectrophotometer. Space is provided to write on the card to identify the date of the analysis, the sample identity and the name of the analyst.

Real Crystal IR cards do not exhibit the strong absorbance peaks found in PTFE and polyethylene sample substrates(see Fig. 1 & Fig. 2 below). Real Crystal IR cards are also unlike screen cards, which allow sample films to break within a few seconds when the card is placed in the vertical position and which cut off a significant amount of energy. Real Crystal IR cards perform like what these cards are trying to emulate--real crystals. The alkali halide sample support substrates (KBr, KCl and NaCl) used in Real Crystal IR sample cards transmit in excess of 80% of the available energy with 15mm and 19mm apertures and in excess of 70% of the available energy with 9.5mm apertures (see Figs. 3, 4 & 5 below). In fact, the new Real Crystal IR cards perform every bit as well as the crystal blanks that the 3M cards sought to emulate. Yet, Real Crystal IR cards are inexpensive and disposable because ICL's process eliminates many of the costly steps required to produce a crystal blank.

NATIONAL has prepared these cards with a method that makes them relatively impervious to atmospheric moisture, thus eliminating storage issues. And as single use sample substrates, they can be used with aqueous samples. (See Fig. 6 below).

Real Crystal cards are also available with crystal cover slips. These small square crystal windows can be used with the 19mm diameter aperture IR cards to sandwich a sample between the crystal window mounted in the IR card and the cover slip window to facilitate use of the cards for mulls and volatile liquid samples.

Part No.	Description
432-7095	NaCl-Pack of 25, 9.5mm aperture
432-7096	KBr-Pack of 25, 9.5mm aperture
432-7097	KCl-Pack of 25, 9.5mm aperture
432-7131	NaCl-Pack of 25, 15mm aperture
432-7132	KBr-Pack of 25, 15mm aperture
432-7133	KCl-Pack of 25, 15mm aperture
432-7087	NaCl-Pack of 25, 19mm aperture
432-7090	KBr-Pack of 25, 19mm aperture
432-7091	KCl-Pack of 25, 19mm aperture
432-7092	NaCl Cover Slips, Pack of 25
432-7093	KBr Cover Slips, Pack of 25
432-7094	KCl Cover Slips, Pack of 25
432-7086	NaCl Sample Pack of 5, 9.5mm aperture
432-7088	KBr Sample Pack of 5, 9.5mm aperture
432-7089	KCl Sample Pack of 5, 9.5mm aperture
432-7134	NaCl Sample Pack of 5, 15mm aperture
432-7135	KBr Sample Pack of 5, 15mm aperture
432-7136	KCl Sample Pack of 5, 15mm aperture
432-7098	NaCl Sample Pack of 5, 19mm aperture
432-7099	KBr Sample Pack of 5, 19mm aperture
432-7100	KCI Sample Pack of 5, 19mm aperture

 

Reliable Sample Cards for FTIR & IR Applications

Real Crystal FTIR & IR Sample Cards offer outstanding accuracy and versatility for fast sample preparation in infrared spectroscopy. Designed to accommodate various sample types, the spectroscopically pure crystal windows deliver high transmission, ensuring dependable results for both solids and liquids. The cards robust design and protective packaging guard against contamination and damage, supporting repeatable experiments.


Customized Dimensions and User-Friendly Design

These sample cards are available in customizable sizes upon request, typically featuring a 25mm x 25mm x 1mm format depending on the model selected. The core components such as the crystal window and sample card holder/frame ensure ease of use. Packed individually in protective cases, each card maintains cleanliness and integrity, making them highly practical for everyday laboratory needs.