Evaluation of nitrate as internal standard for quantitative determination of urea in urine by Raman spectroscopy

@inproceedings{Neto2018EvaluationON,
  title={Evaluation of nitrate as internal standard for quantitative determination of urea in urine by Raman spectroscopy},
  author={Jos{\'e} Anchieta Gomes Neto and Silvana Ruella de Oliveira and Felipe Manfroi Fortunato and Marcos Andr{\'e} Bechlin and Edilene Cristina Ferreira},
  year={2018}
}
reference spectrop hotometric method. Nitrate was tested as internal standard in a new method for urea determination in urine by Raman spectroscopy. The proposed method furnished better p r e c i s i o n i n c o m p a r i s o n w i t h conventional methods. Besides, it is simple, robust and provides faster results, minimum sample preparation and lower reagent consumption and minimum waste generated than the reference spectrophotometric method. 

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