药典或者其他标准品、对照品的提供机构无明确规定对照品溶液的有效期,特别是对开封的标准品或配制的标准溶液使用期限。由于日常检验需要,需重复使用同一份标准溶液,故对水杨酸对照品溶液的稳定性进行7个月研究,考察在制定的有效期内,待考察对照品溶液的含量结果在规定限度以内,则认为在此储存时间内,该对照品溶液是稳定的,可用来做相应的分析。 Pharmacopoeias or other standards, the reference organization of the provider does not clearly define the reference solution of the expiration date, especially for Kaifeng standard or formulated standard solution life. Due to routine testing needs, the need to re-use the same standard solution, so the stability of salicylic acid reference solution for 7 months to study the development of the validity period to be investigated reference solution solution results within the limits, It is considered that during this storage time, the reference solution is stable and can be used for the corresponding analysis.