Publications [#262878] of Tuan Vo-Dinh

Papers Published

1. Narayanan, VA; Bello, JM; Stokes, DL; Vo Dinh, T, Surface-enhanced Raman analysis of vitamin B complex: quantitative detection of p-aminobenzoic acid, J. Raman Spectrosc. (UK), vol. 22 no. 6 (1991), pp. 327-331, WILEY [doi]
   (last updated on 2026/01/19)

   Abstract:
   Surface-enhanced Raman scattering (SERS) spectra of vitamin B complex extracted in ethanol were analyzed using a silver-coated alumina substrate. The SERS effect appears to enhance selectively the spectrum of p-aminobenzoic acid (PABA) from among the complex constituents of the vitamin B complex tablet. A calibration graph of SERS signal intensity versus concentration of PABA was constructed for quantitative analysis. With such a graph it is possible to detect PABA down to low parts per million levels. The potential of the SERS technique in other analytical and biomedical areas is discussed

   Keywords:
   calibration;organic compounds;surface enhanced Raman scattering;