Using carubinose as standard, DNS as color developing reagent, the content of mannan in coconut shell was indirectly determined by spectrophotometry.
以D-甘露糖为标准，DNS作显色剂，用分光光度法间接测定椰子壳中甘露聚糖的含量。
Using D-xylose as standard and DNS as color developing reagent, the content of xylose in coconut shell was indirectly determined by spectrophotometry.
以d -木糖为标准，DNS为显色剂，采用分光光度法间接测定椰壳中木聚糖的含量。
By using mannose as the standard and DNS as colour developing reagent, the author indirectly determinated the content of mannan in defatted coffee grounds by spectrophotometry.
以d -甘露糖为标准，DNS作显色剂，用分光光度法间接测定脱脂咖啡渣中甘露聚糖的含量。
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