核酸(nucleotide)为核 酸分子之构成单元,由五碳糖(pentose )、磷酸 (phosphate)及氮盐基(nitrogen base)所组成,组成 DNA 之核酸的五碳糖为去氧核糖(deoxyribose),而 组成 RNA 之核酸的五碳糖为核糖(ribose),而组成 核酸之碱...
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氮沉降能引起土壤酸化,同时造成土壤盐基离子淋失。
N deposition can acidify the soil and leaching the exchangeable base cations.
研究了挥发性盐基氮值指标与其感官指标之间的符合程度,参照GB/T5009。
The relativity between TVB-N index and the sensory index was studied using GB/T5009.
应用KDY-9820凯氏定氮仪测定羊肉中挥发性盐基氮,通过与半微量定氮法对比及精密度实验,结果表明KDY-9820全自动定氮仪能简便、快速、准确地测定肉中的挥发性盐基氮。
TVB-N of mutton was analysed by KDY-9820 type automatic azotometer, through compared with kjeldahl and studied the precision, accuracy and inaccuracy of KDY-9820 type automatic azotometer.
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