1. Determination of Lidocaine in Dental Pulp by High-Performance Liquid Chromatography 
Somchart Kanjanawattana, DDS, MSc, Chutima Mangkornkarn, DDS, Prapin Wilairat, BSc(Hon.), MS, PhD, Noppakun Vongsavan, DDS, MSc, PhD 
Journal of Endodontics 
Volume 27, Issue 1, Pages (January 2001)
DOI: /
Copyright © 2001 The American Association of Endodontists Terms and Conditions

2. Fig 1
Chromatogram of lidocaine-free dental pulp (negative control). The small interfering peak at the retention time of lidocaine (3.55) is shown. AU = Absorbance Unit.
Journal of Endodontics  , 31-35DOI: ( / )
Copyright © 2001 The American Association of Endodontists Terms and Conditions

3. Fig 2
Chromatogram obtained from the extract of the lower canine of the second dog. Lidocaine and bupivacaine peaks are at retention times of 3.42 and 8.37 min, respectively. AU = Absorbance Unit.
Journal of Endodontics  , 31-35DOI: ( / )
Copyright © 2001 The American Association of Endodontists Terms and Conditions