LI Xi-feng, HU Li-xin, HU Chun-yue, et al. Determination of -terthienyl in Radix Echinopsis by GC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(14): 114-116.
LI Xi-feng, HU Li-xin, HU Chun-yue, et al. Determination of -terthienyl in Radix Echinopsis by GC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(14): 114-116.DOI:
Objective: To establish a method for determination of α-terthienyl in Radix Echinopsis by GC. Method: A simple GC method was developed with DA-INOWAX polythylene glycol capillary column (0.25 μm×0.25 mm
30 m) with FID detector.N2 was carrier gas
injection port temperature
column temperature and FID detector were used at 240 ℃
splittless mode.The sample size was 1 μL and column flow rate at 1.9 mL·min-1. Result: On this condition
good linear within the concentration range of 0.142 9-1.429 0 g·L-1(r=0.999 6)
with an average recovery rate of 98.56%.(RSD 0.77%
n=6). Conclusion: This method is accurate
simple
and good reproducibility
which can be used for the determination of α-terthienyl in Radix Echinopsis.