Labmix24

Description

This Standard Reference Material (SRM®) is a certified spectroscopic standard for the correction of the relative intensity of Raman spectra obtained with instruments employing 1064 nm laser excitation. NIST-2244 consists of an optical glass that emits a broadband luminescence spectrum when excited at this laser wavelength. The relative spectral intensity of the glass luminescence has been determined through the use of a white-light, uniform-source, integrating sphere that has been calibrated for its irradiance at NIST and a high-emissivity blackbody source. The shape of the mean luminescence spectrum of this glass is described by a mathematical expression that relates the relative spectral intensity to the wavenumber (cm-1) expressed as the Raman shift from the excitation laser wavelength. This polynomial, together with a measurement of the luminescence spectrum of the standard, can be used to determine the spectral intensity-response correction that is unique to each Raman system. The resulting instrument-intensity-response correction may then be used to obtain Raman spectra that are largely free from instrument-induced spectral artifacts. /// Sample value(s) - please ask for current certificate.

Contents

Analyte	Concentration	Additional information
Polynomial Coefficient (20 °C - 25 °C) (1064 nm excitation)	0,405953	A0
Polynomial Coefficient (20 °C - 25 °C) (1064 nm excitation)	0,000520345	A1
Polynomial Coefficient (20 °C - 25 °C) (1064 nm excitation)	5,30E-07	A2
Polynomial Coefficient (20 °C - 25 °C) (1064 nm excitation)	(-6,84463E-10)	A3
Polynomial Coefficient (20 °C - 25 °C) (1064 nm excitation)	2,10E-13	A4
Polynomial Coefficient (20 °C - 25 °C) (1064 nm excitation)	(-2,05741E-17)	A5

Analyte

CAS Number

Concentration

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Additional information

Method