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采用FAB-MS测定α-人心房肽片段的氨基酸序列。通过分析碎片离子的m/z值,可以明确表达各肽段的氨基酸序列。在分子离子区都是[M+H]~+峰,所有片段羰基的α断裂都有肽键断裂和碳碳键断裂两种方式。
The amino acid sequence of α-human atrial natriuretic peptide fragment was determined by FAB-MS. By analyzing the m / z value of fragment ions, the amino acid sequence of each peptide can be clearly expressed. In the molecular ion region are all [M + H] ~ + peak, all the fragments of carbonyl α-bond fracture and carbon-carbon bond fracture are two ways.