P-hydroxy benzaldehyde has proved to be stable during all sample storage, preparation and analytical periods.

对羟基苯甲醛在样品储备、准备和分析过程中稳定性良好。

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The main volatile chemical components of RPR are(Z, Z)-9,12-octadecadienoic acid, n-hexadecanoic acid and 2-hydroxy-benzaldehyde.

赤芍主要挥发成分为（Z, Z）-9, 12-十八碳二烯酸，正十六碳酸和2-羟基苯甲醛。

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CONCLUSION The mail volatile chemical components of RPR are(Z, Z)-9,12-octadecadienoic acid, n-hexadecanoic acid and 2-hydroxy-benzaldehyde.

结论赤芍主要挥发成分为（Z，Z）-9，12-十八碳二烯酸，正十六碳酸和水杨醛。

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