目的:监测和评价葡萄糖注射液质量现状,为进一步改进提高其生产工艺和质量标准提供参考。方法:采用法定检验方法对抽样进行检验,分析评价其质量;并对抽样进行如下探索性研究:研究了灭菌及冷却条件与5-羟甲基糠醛(5-HMF)产生量的关系,测...目的:监测和评价葡萄糖注射液质量现状,为进一步改进提高其生产工艺和质量标准提供参考。方法:采用法定检验方法对抽样进行检验,分析评价其质量;并对抽样进行如下探索性研究:研究了灭菌及冷却条件与5-羟甲基糠醛(5-HMF)产生量的关系,测定了全部样品的渗透压与电导率,比较了各厂家包装标示的规范性。结果:按法定方法检验,样品合格率为100%;探索性研究表明:灭菌时间、灭菌温度和冷却方式与5-HMF产生量密切相关;渗透压平均值为270 m Osmol·kg-1,最低260 m Osmol·kg-1,最高287 m Osmol·kg-1,均在等渗范围内;电导率平均值为20.09μs·cm-1,最低8.75μs·cm-1,最高54.6μs·cm-1,仅有1家企业3批样品电导率大于50μs·cm-1,经研究查明是加入盐酸调节p H值所致;1批产品包装标识未标注百分浓度。结论:法定检验和探索性研究结果表明,葡萄糖注射液总体质量良好。通过探索性研究,可为该产品生产工艺和质量标准进一步提高提供参考。展开更多
All engineering projects consist of several steps, and one of the main tasks is to identify and characterize the most important features of rock types that will be excavated, crushed, or mined for any particular usage...All engineering projects consist of several steps, and one of the main tasks is to identify and characterize the most important features of rock types that will be excavated, crushed, or mined for any particular usage purpose, from a single residential building to major works of infrastructure. Laboratory investigation on engineering geology is thus conducted in order to determine the most relevant rock properties when designing structures such as mining shafts, tunnels, buildings, or reservoir dams to be built in sites associated with rocks. A wide range of laboratory tests is available, making the correct choice of test methods greatly relevant to determine the key property for the planned use of the rock. This paper is an illustrative case of laboratory testing of basaltic rocks to be used as riprap in a reservoir dam. It shows the important role of the petrographic study carried out to analyze the distribution pattern of smectite clay minerals. Test results are explained for the assessment of rock alterability, an essential aspect for the selection of the most suitable basalt variety for the envisaged conditions of use.展开更多
文摘目的:监测和评价葡萄糖注射液质量现状,为进一步改进提高其生产工艺和质量标准提供参考。方法:采用法定检验方法对抽样进行检验,分析评价其质量;并对抽样进行如下探索性研究:研究了灭菌及冷却条件与5-羟甲基糠醛(5-HMF)产生量的关系,测定了全部样品的渗透压与电导率,比较了各厂家包装标示的规范性。结果:按法定方法检验,样品合格率为100%;探索性研究表明:灭菌时间、灭菌温度和冷却方式与5-HMF产生量密切相关;渗透压平均值为270 m Osmol·kg-1,最低260 m Osmol·kg-1,最高287 m Osmol·kg-1,均在等渗范围内;电导率平均值为20.09μs·cm-1,最低8.75μs·cm-1,最高54.6μs·cm-1,仅有1家企业3批样品电导率大于50μs·cm-1,经研究查明是加入盐酸调节p H值所致;1批产品包装标识未标注百分浓度。结论:法定检验和探索性研究结果表明,葡萄糖注射液总体质量良好。通过探索性研究,可为该产品生产工艺和质量标准进一步提高提供参考。
文摘All engineering projects consist of several steps, and one of the main tasks is to identify and characterize the most important features of rock types that will be excavated, crushed, or mined for any particular usage purpose, from a single residential building to major works of infrastructure. Laboratory investigation on engineering geology is thus conducted in order to determine the most relevant rock properties when designing structures such as mining shafts, tunnels, buildings, or reservoir dams to be built in sites associated with rocks. A wide range of laboratory tests is available, making the correct choice of test methods greatly relevant to determine the key property for the planned use of the rock. This paper is an illustrative case of laboratory testing of basaltic rocks to be used as riprap in a reservoir dam. It shows the important role of the petrographic study carried out to analyze the distribution pattern of smectite clay minerals. Test results are explained for the assessment of rock alterability, an essential aspect for the selection of the most suitable basalt variety for the envisaged conditions of use.
