USP-NF2021 钛白粉美国药典测试返回 Back
|
Titanium Dioxide 钛白粉 |
测试标准 美国药典法规 USP-NF2021 |
价格 Price |
Sample Size 样品量（g） |
CAS NO.13463-67-7 国际化学编码 |
|
Identification A 标识 |
理化鉴别 | RMBxxx | 2 | |
|
Assay 酸性 |
手动滴定法 | RMBxxx | 5 |
The content is based on the dry product, and the drying weight loss is needed; The preparation of zinc mercury column is complex and dangerous; Use highly toxic products 含量以干品计，需做干燥失重；锌汞齐柱制备复杂危险；用到剧毒品. |
|
Arsenic 重金属砷 |
RMBxxx | 9 |
The silver diethyldithiocarbamate method needs sample treatment 二乙基二硫代氨基甲酸银法，需要样品处理 |
|
|
Loss on drying 干燥失重 |
RMBxxx | 6 | ||
|
loss on ignition 着火失重 |
RMBxxx | 24 |
Determine the type of sample (whether it is marked with attention grade) 确定样品类型（是否标示有衰减等级） |
|
|
water soluble substances 水溶性物质 |
RMBxxx | 24 |
Sample pretreatment is complex 样品前处理复杂 |
|
|
acid soluble substances 酸溶性物质 |
RMBxxx | 30 | ||
| Lead time 测试周期：20 working days 工作日 | ||||
