| 1. | Test method for determining the biodegradability of radiolabeled polymeric plastic materials in seawater 海水中无线电标签聚合塑料生物降解性的测定方法 |
| 2. | Test methods for determining aerobic biodegradation of radiolabeled plastic materials in an aqueous or compost environment 在水和堆肥环境中测定放射性同位素塑料氧化降解的方法 |
| 3. | Standard test method for determining the biodegradability of radiolabeled polymeric plastic materials in seawater 海水中放射性同位素标记的聚脂塑料的生物降解性的测定的标准试验方法 |
| 4. | The relative merits between " degradable " and " non - degradable " radiolabeled pyrimidine analogues have been compared in this paper 本文比较可分解及不可分解放射性标帜嘧啶核苷酸之个别优点。 |
| 5. | Standard test methods for determining aerobic biodegradation of radiolabeled plastic materials in an aqueous or compost environment 在含水或合成环境中测定放射性标记塑料材料的需氧生物降解性的标准试验方法 |
| 6. | Standard test method for determining anaerobic biodegradability of radiolabeled plastic materials in a laboratory - scale simulated landfill environment 在实验室模拟陆地环境下测定放射性塑料物质厌氧生物降解性的标准试验方法 |
| 7. | Although the incorporation of nondegradable pyrimidine analogues into dna is usually less efficient than that of the degradable pyrimidines , issues related to radiolabeled metabolites and interpretation of the images is usually simplified 不可分解之嘧啶核苷酸与dna的结合效率较可分解之嘧啶核苷酸为低,但由放射性代谢物及其衍生的影像解释困难问题将会简化。 |
| 8. | The method for assessing the degree of bacterial adhesion to prosthetic valve materials was established primarily . the capacities of staphylococcus aureus ( sa ) , staphylococcus epidermidis ( se ) , escherichia coli ( ec ) and pseudomonas aeruginosa ( pa ) for adhesion to dacron , pyrolytic carbon and polytetrofluoroethylene ( ptfe ) were quantitatively determined by the plate counting and gamma - ray counting of 125i radiolabeled bacteria in vitro 采用平板菌落计数法、 125i标记细菌放射性测定法,测定金黄色葡萄球菌、表皮葡萄球菌、大肠杆菌、绿脓杆菌对涤纶、热解碳、聚四氟乙烯的粘附情况。 |