Chemical profiling and quantification of ShenKang injection, a systematic quality control strategy using ultra high performance liquid chromatography with Q Exactive hybrid quadrupole orbitrap high‐resolution accurate mass spectrometry

Abstract

ShenKang injection is traditional Chinese medicine used to treat chronic renal failure in China. It is a compound preparation that consists of four herbs: Rhubarb, Salvia miltiorrhiza, Safflower and Radix Astragali. We developed an ultra high pressure liquid chromatography coupled with Q Exactive hybrid quadrupole-orbitrap high resolution accurate mass spectrometry tandem mass spectrometry method to analyze its chemical compositions, and a total of 90 compounds were identified from ShenKang injection. Among them, 19 major compounds were unambiguously detected by comparing with reference standards. Meanwhile, 13 representative compounds selected as quality control markers were simultaneously quantified in ShenKang injection samples. Chromatographic separation was accomplished on a Waters ACQUITY HPLC® HSS C column using gradient elution. The method was validated with respect to linearity, sensitivity, accuracy and precision, reproducibility and stability. And the validated method was successfully applied for simultaneous determination of 13 bioactive compounds in ShenKang injection from ten batches of samples by liquid chromatography with mass spectrometry. The results were analyzed by principal components analysis method, and three compounds had a significant relationship with the quality control of ShenKang injection. This research established a rapid and reliable method for the integrating quality control, including qualitation and quantification of ShenKang injection.

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