The United States Pharmacopoeia USP788, Chinese Pharmacopoeia CP0903 and other pharmacopeias of various countries have clearly defined regulations on intravenous injections (solution injections, sterile powders for injection, concentrated solutions for injection) and sterile raw materials for intravenous injection, and insoluble particles need to be checked. It is also stipulated that the first method uses the photoresist method, and the second method uses the microscope counting method. When the first method fails to pass the test, the second method - microscopic counting method is used for testing and is the basis for the final judgment.
The Application of the first photoresist method: intravenous injections, including clear and transparent small injections, large infusions, sterile powders, etc.;
Application of the second method of microscopic counting: intravenous injections, including clear and transparent small injections, large infusions, sterile powders, colored injections, large viscosity injections, emulsions, liposomes, suspensions, and injections prone to bubbles , contrast agents, vaccines, trace samples, biological drugs, intraocular injections, etc.
WLY-01 series products are suitable for testing insoluble particles such as various intravenous injections and packaging materials. The main products include microscope host, electric platform, analysis software, computer, etc. The supporting consumables include filter device, blank source membrane, grid filter membrane, raw silver, dust removal brush, drying system, suction filter pump, and dust-free petri dish. wait.

United States Pharmacopeia USP787, USP788, USP789;
European Pharmacopoeia EP6.0, EP7.0, EP7.8, EP8.0;
British Pharmacopoeia BP2013, BP2012, 201. , 2009;
Japanese Pharmacopoeia JP16, JP15, JP14;
Chinese Pharmacopoeia Cp0903, etc.
1) Sample filtration: Place a clean 25mm filter membrane on the appropriate filter, so that all samples pass through the warm membrane.
2) Drying the filter membrane: Place the filtered membrane in a clean petri dish with a dust-free inlay, and use a Dry Bath to select an appropriate temperature for drying.
3) Scanning membrane: The dried filter membrane is placed under the microscope objective and the entire membrane is scanned.
4) Data analysis: Perform data analysis on all scanned film images, and finally get a report.
As shown in the figure below, the red injection solution is filtered using a filtration device. After filtration, the filter membrane is dried, and then the dried filter membrane is placed on a fully automatic scanning microscope platform, and a 10x objective lens is used to scan the entire filter membrane. The software Analyze the scanned filter membrane, and finally issue a data report according to the test requirements.

| serial number | name | unit | quantity | Remark |
| 1 | Microscope host (transflective light source) | tower | 1 | Standard configuration |
| 2 | Automatic mobile scanning platform | set | 1 | Standard configuration |
| 3 | manual | share | 1 | Standard configuration |
| 4 | Certificate | share | 1 | Standard configuration |
| 5 | Random packing list | share | 1 | Standard configuration |
| 6 | Supporting filter device | set | 1 | Standard configuration |
| 7 | Millipore 25mm blank filter membrane | box | 1 | Optional |
| 8 | Flat-headed brat | Bundle | 2 | Standard configuration |
| 9 | Dry Bath | set | 1 | Optional |
| 10 | 21CFR Parti 1 software | set | 1 | Optional |
| 11 | data cable | set | 1 | Standard configuration |
| 12 | Dust cover | set | 1 | Standard configuration |
| 13 | Micrometer | Bundle | 1 | Standard configuration |
| 14 | 5 gm standard particles | bottle | 1 | Standard configuration |
| 15 | 10 standard particles | bottle | 1 | Standard configuration |
| 16 | 25 standard particles | bottle | 1 | Standard configuration |
| 17 | On-site 3Q verification and documentation | share | 1 | Standard configuration |
| 18 | dust brush | Bundle | 1 | Standard configuration |
| 19 | lens tissue | Book | 5 | Standard configuration |
| 20 | Computer (i5, hard drive 1T, memory 8G) | tower | 1 | Optional |
| twenty one | Standard version (including measurement) | indivual | 1 | Standard configuration |