采用原子吸收光谱法对45名母乳的含锌量作了随访观察。结果证明初乳中含锌量极丰富,可达正常人血锌浓度的6～7倍,或成熟乳的4～5倍。但分娩一月后乳汁锌浓度迅即下降。产妇血锌浓度只相当于健康未孕妇女的55％左右,母—婴血锌浓度之间未见密切相关。新生儿血锌浓度与出生体重及性别也无关。 Forty-five breast milk samples were examined for their zinc content using atomic absorption spectroscopy. The results show that the amount of zinc in colostrum is extremely rich, up to 6 to 7 times the normal serum zinc concentration, or 4 to 5 times the mature milk. However, milk zinc concentration immediately after delivery in January decreased. Maternal blood zinc concentration is only equivalent to about 55% of healthy women who are not pregnant, mother-baby blood zinc concentration is not closely related. Neonatal blood zinc concentration and birth weight and gender have nothing to do.