Showing all 8 results
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Holmium Oxide Glass Filter, Validity – 2 Years
Holmium Oxide Glass Filter Usable Range - 220 to 640nm (14 Peaks) Validity - 2 Years with NIST Traceable Certificate -
Holmium oxide liquid cell, Validity – 2 Years
4% m/v holmium oxide in 10% v/v perchloric acid. This is the most widely used reference for wavelength qualification and is accepted by all major pharmacopoeias and regulatory authorities. This containing a series of 14 sharp peak range from 240 to 650 (241, 250, 278, 288, 334, 346, 361, 385, 417, 451, 468, 485, 537, 641nm) -
Neutral Density Filter. Validity –2 Years
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) -
Nicotinic Acid 12 mg/l
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 -
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 -
Polystyrene NIR References 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). 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 -
Potassium Dichromate 60 mg/l. Validity –2 Years
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) -
Potassium Dichromate 600 mg/l Validity –2 Years
Potassium Dichromate cover wavelength 430nm
