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Keywords:

  • dynamic surface-enhanced Raman spectroscopy;
  • mechanism;
  • analytical methods;
  • R6G;
  • phase transitions

In this study, we proposed a simple and ultrasensitive approach called dynamic surface-enhanced Raman spectroscopy, which has been experimentally and theoretically demonstrated. The signal for rhodamine 6G is at least four orders of magnitude higher than that for the traditional method. A series of experiments have been exploited so as to verify the universality of our strategies. The results highlight a rapid and effective method in addictive narcotics residue apparatus, pesticide residue, crime scene or other public security field. Copyright © 2012 John Wiley & Sons, Ltd.