Dear Abdelgadir,

Please see the paper "Handheld new technology Raman and portable FT-IR spectrometers as complementary tools for the in situ identification of organic materials in modern art"  in Spectrochim Acta A Mol Biomol Spectrosc and the link below.

Peter

http://www.ncbi.nlm.nih.gov/pubmed/28099894

http://www.cbrnetechindex.com/Explosives-Detection/Technology-ED/Molecular-Spectroscopy-ED-T/Mid-infrared-Spectroscopy-ED-MS

Dear Abdelgadir,

As far as I know, it is impossible to have the 400-2500 nm spectral domain with one handheld system. 

Regards,

Ludovic.

Dear Abdel,

We used GER-3700 spectroradiometric (ASD) for study "A Comparison of Hyperspectral Chlorophyll Indices for Wheat Crop Chlorophyll Content Estimation Using Laboratory Reflectance Measurements". The paper is listed in my articles list.

A useful link for other similar instruments:

http://www.uv.es/~leo/sen2flex/radiometric.htm

Regards

Shahid

Hello

You mean we used GER-3700 and not ASD for this work. However, the both instruemnt measure the reflectance between 350 - 2500 nm. Personnaly I prefere ASD, good stability and better SNR.

K. regards

Thanks for all the comments. I will be shopping soon for the suggested ones. Best regards