Rapid Determination of 6 Kinds of Aconite Alkaloids in Rat Plasma by HPLC-Quadrupole/Electrostatic Field Orbitrap High Resolution Mass Spectrometry
10.6039/j.issn.1001-0408.2018.06.10
- VernacularTitle:高效液相色谱-四极杆/静电场轨道阱高分辨率质谱法快速检测大鼠血浆中6种附子生物碱
- Author:
Na SAI
1
;
Rong JIN
;
Ren BU
;
Yanli GU
;
Yinghua LIN
;
Wenpu LEI
;
Yao SUN
Author Information
1. 内蒙古医科大学药学院
- Keywords:
HPLC;
Quadrurpole/electrostatic field orbitrap mass spectrometry;
Aconitum alkaloids;
Plasma concentration;
Rats
- From:
China Pharmacy
2018;29(6):761-765
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To establish HPLC-quadrupole/electrostatic field orbitrap high resolution mass spectrometry for rapid determination of aconitine,mesaconitine,hypaconitine,benzoylaconitine,benzoylmesaconine and benzoylhypacoitine in rat plasma. METHODS:Internal standard lappaconitine was added into plasma sample,and methanol precipitated protein was used for pretreatment. HPLC-quadrupole/electrostatic field orbitrap high resolution mass spectrometry was adopted. HPLC condition was as follows as Sinochrom ODS-BP C18column,mobile phase consisted of acetonitrile-1% formic acid solution(50:50,V/V),the flow rate of 0.6 mL/min,sample size of 10 μL,column temperature of 25 ℃,automatic sampler temperature of 4 ℃. Mass spectrum scanning mode was full ion monitoring model,positive ion acquisition,mass charge ratios(m/z)of ion were 646.32(aconitine), 632.30(mesaconitine),616.31(hypaconitine),604.31(benzoylaconitine),590.29(benzoylmesaconine),574.30(benzoylhypacoitine), 585.31(internal standard). Six male Wistar rats were collected and given single dose of total alkaloid extract of Aconitum carmichaeli(4 mg/kg)intragastrically. Blood samples were collected before medication(0 h)and 0.5,0.75,1.25,1.5,2,4,6, 8,10,24 h after medication. Plasma concentration was determined and pharmacokinetic parameters were calculated by using PK-Solver V2.0 software. RESULTS:The linear range of 6 kinds of aconitum alkaloids in plasma were 0.1-10 μ g/L(r>0.992). The limit of quantitation was 0.1 μ g/L. Average recovery was higher than 75%,RSDs of intra-day and inter-day,matrix effects,stability test were all lower than 15%. The tmaxof 6 kinds of aconite alkaloids were about 1.2 h;t1/2were about 10 h;cmaxof monoestertype aconite alkaloids were higher than those of diester-type aconite alkaloids. CONCLUSIONS:Established HPLC-quadrupole/electrostatic field orbitrap high resolution mass spectrometry is accurate,sensitive,simple and rapid, and can be used for plasma concentration monitoring of 6 kinds of aconitum alkaloids.
