PMID- 17418186 OWN - NLM STAT- MEDLINE DCOM- 20070619 LR - 20191210 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 589 IP - 2 DP - 2007 Apr 25 TI - Coupling continuous ultrasound-assisted extraction with ultrasonic probe, solid-phase extraction and high-performance liquid chromatography for the determination of sodium Danshensu and four tanshinones in Salvia miltiorrhiza bunge. PG - 231-8 AB - A dynamic continuous ultrasound-assisted extraction with high intensity ultrasonic probe (CUAE-HIUP) combined with solid-phase extraction (SPE) for preconcentration and clean-up of the extract prior to high-performance liquid chromatography (HPLC) determination of the main biological active ingredients, sodium Danshensu and four tanshinones (dihydrotanshione I, tanshinone I, cryptotanshinone and tanshinone IIA) from root of Salvia miltiorrhiza bunge has been developed. An experimental design (Plackett-Burman design, 2(6)x3/16) was used to optimize the CUAE-HIUP procedure and the SPE step. Detection limits of 1.2-4.2 x 10(-6) mg mL(-1) were achieved with the preconcentration efficiency of more than 10-folds by the SPE procedure. The repeatability and within-laboratory reproducibility of the whole process, expressed as relative standard deviations (RSDs), were 1.5-3.6%, 1.6-3.1%, respectively. As compared with the conventional extraction techniques such as room temperature extraction (24 h), Soxhlet (4 h) and even microwave-assisted extraction (2 min), CUAE-HIUP achieved the highest extraction yield (98.9%) and the least amount (10 mL) of solvent compared with the other techniques (16 mL) in only 3 min. The method was successfully applied to the determination of the five biological active ingredients in root of S. miltiorrhiza bunge and Danshen-containing pharmaceutical formulations. FAU - Yang, Qiao AU - Yang Q AD - State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China. FAU - Zhang, Xiao-ling AU - Zhang XL FAU - Li, Xi-yin AU - Li XY FAU - Tang, Wei-kun AU - Tang WK FAU - Zhang, Jun-xiang AU - Zhang JX FAU - Fang, Cheng-xiang AU - Fang CX FAU - Zheng, Cong-yi AU - Zheng CY LA - eng PT - Journal Article DEP - 20070312 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (Abietanes) RN - 0 (Lactates) RN - 0 (Phenanthrenes) RN - 03UUH3J385 (tanshinone) RN - 4GF33A5PAJ (3,4-dihydroxyphenyllactic acid) SB - IM MH - Abietanes MH - Chromatography, High Pressure Liquid/*methods MH - Lactates/*analysis MH - Phenanthrenes/*analysis MH - Salvia miltiorrhiza/*chemistry MH - Sensitivity and Specificity MH - *Ultrasonics EDAT- 2007/04/10 09:00 MHDA- 2007/06/20 09:00 CRDT- 2007/04/10 09:00 PHST- 2007/01/13 00:00 [received] PHST- 2007/02/28 00:00 [revised] PHST- 2007/03/02 00:00 [accepted] PHST- 2007/04/10 09:00 [pubmed] PHST- 2007/06/20 09:00 [medline] PHST- 2007/04/10 09:00 [entrez] AID - S0003-2670(07)00489-8 [pii] AID - 10.1016/j.aca.2007.03.005 [doi] PST - ppublish SO - Anal Chim Acta. 2007 Apr 25;589(2):231-8. doi: 10.1016/j.aca.2007.03.005. Epub 2007 Mar 12.