Polystyrene NIR References Transmission & ATR, Validity -3 Years
These traceable reference materials can be used to qualify Mid IR - FTIR spectrophotometers for wavelength accuracy over an operating range of 540 cm-1 to 3125 cm-1 (3.2 µm to 18.5 µm). One version of the product can also be used to qualify the resolution of a Mid IR instrument as required by some pharmacopoeias and for the wavelength qualification of ATR (Attenuated Total Reflectance) measurements in the Mid-IR. Another version has additional certified peaks in the NIR region.2 Certified 38micron Polystyrene Films - Transmission & ATR
These traceable reference materials can be used to qualify Mid IR - FTIR spectrophotometers for wavelength accuracy over an operating range of 540 cm-1 to 3125 cm-1 (3.2 µm to 18.5 µm). Polystyrene film (38 micron thick) mounted in a card holder for use as a wavenumber accuracy reference in the IR spectrum. Polystyrene Film (14 Peaks), Traceable to NIST SRM 1921b
Nicotinic acid solutions with concentrations from
6 to 24 mg/l in dilute (0.1 M) hydrochloric acid, permanently heat sealed in high quality far UV
quartz cells. Supplied with a 0.1 M hydrochloric acid blank. CRM, Concentration 6,12,18,24mg/l are also available
Potassium dichromate in 0.001 M perchloric acid is permanently heat sealed by heat fusion into 10 mm UV-quality quartz cells. Solutions are prepared from solid potassium dichromate, NIST SRM 935a.Potassium Dichromate cover wavelength (235,257,313 & 350nm)
Neutral Density filter recommends calibration at 440 nm, 465 nm 546.1 nm, 590 nm and 635 nm. CRM with different Absorbance range is available(0-3.5Abs)