CAJ | 학술논문

用无水甲醇试剂研制了甲醇中微量水分标准物质，对研制的标准物质量值进行了均匀性和稳定性检验。结果表明，该标准物质均匀性良好，其量值在一年内无显著变化，具有较好的稳定性。采用与国家一级标准物质比较法进行定值，研制的甲醇中微量水分标准物质的定值结果为0.103%，相对扩展不确定度为3%(k=2)。该标准物质满足卡尔·费休水分测定仪检定校准的要求。
용무수갑순시제연제료갑순중미량수분표준물질，대연제적표준물질량치진행료균균성화은정성검험。결과표명，해표준물질균균성량호，기량치재일년내무현저변화，구유교호적은정성。채용여국가일급표준물질비교법진행정치，연제적갑순중미량수분표준물질적정치결과위0.103%，상대확전불학정도위3%(k=2)。해표준물질만족잡이·비휴수분측정의검정교준적요구。
The reference material of moisture in methanol was prepared by using anhydrous ethanol. The uniformity and stability were tested. The testing results showed that the reference material exhibited good uniformity and stability, the value showed no significant changes in one year. The standard value was defined by the way of comparison with the national primary reference material. The standard value of reference material of moisture in methanol was 0.103%, Urel=3%(k=2). The reference material can meet the requirement of verification and calibration of Carle Fischer moisture titrators.