There were 8 characteristic peaks that constituted fingerprint characters of HPLC fingerprints of betaine, and betaines of Fructus Lycii from different habitats were quite different in content.

• 结果表明：8个特征峰构成了宁夏枸杞甜菜碱提取物的色谱指纹图谱，不同产地、不同品种的枸杞样品甜菜碱提取物指纹图谱存在差异；