2%乌鸡红细胞/无菌/现货;2%乌鸡红细胞/无菌/现货;2%乌鸡红细胞/无菌/现货
小鼠全血|无菌|现货小鼠全血|无菌|现货小鼠全血|无菌|现货 【英文名称】 【CAS】 【纯度】枸橼酸钠抗凝 【分子式】 【分子量】 【分类】细胞培养
小鼠全血:包含红细胞(无核)、白细胞、血小板、血浆。小鼠血液离体凝固极快,采血必须立刻与抗凝剂轻柔混匀;不抗凝静置凝固后离心得到血清;抗凝后离心得到血浆。
小鼠总血量≈6‑8 mL /100 g 体重,20 g 小鼠总血量约 1.2‑1.6 mL。
常用采血方式
- 眼眶静脉丛(非终末):麻醉,毛细管刺入内眼角,采血量 200‑500 μL,可多次采血。
- 摘眼球(终末):血量 0.6‑1.0 mL,血液靠重力流出,禁止挤压胸腔,避免溶血、混入组织液。
- 心脏穿刺(终末,血量最大):麻醉仰卧,3‑4 肋间进针,可采集 0.8‑1.2 mL,适合无菌大量样本吉林大学第...。
- 尾尖采血:仅几十 μL,适合微量检测。
抗凝剂选择(重点,不同实验不能混用)
表格
| 抗凝剂 |
工作浓度 / 配比 |
适用实验 |
不适用 |
| K₂‑EDTA(二钾) |
1.5‑2 mg/mL 全血 |
血常规、血细胞计数、流式免疫分型 |
钙离子检测、凝血功能 |
| 肝素钠 / 锂 |
20‑30 U/mL 全血 |
细胞功能、生化、PBMC 分离 |
凝血实验;部分 PCR |
| 3.2% 枸橼酸钠 |
抗凝剂:血 = 1:9 |
凝血、血小板功能实验 |
钙相关测定 |
操作:采血前把抗凝剂加到 EP 管,采血滴入后轻柔颠倒 5‑8 次混匀,严禁剧烈震荡,防止溶血。
血浆制备(抗凝全血)
- 抗凝全血,4℃,1000‑1500 g,离心 10‑15 min
- 小心吸取上层淡黄色上清即为血浆,避免吸到白细胞层
- 分装,短期 4℃;长期‑80℃,禁止反复冻融
血清制备(不加抗凝剂)
- 血液收集无抗凝 EP 管,室温静置 30‑60 min 充分凝固
- 4℃ 1500‑2000 g 离心 10‑15 min,吸取上层黄色上清,即为血清。
小鼠红细胞裂解(全血提白细胞,流式常用)
- 取抗凝全血,加入红细胞裂解液(ACK 裂解液)
- 室温避光裂解 3‑5 min,液体透亮红色
- PBS 终止裂解,离心弃红色上清,沉淀即为白细胞。
关键注意事项
- 小鼠血液极易凝固,采血与混匀动作要快,出现凝块样本直接报废。
- 全程避免溶血:不要挤压组织、不要剧烈震荡,离心转速不要过高。
- 终末采血需要遵循实验动物伦理规范。
- 样本尽量采血后 30min 内完成处理。
对比记忆:鸡血红细胞有核,小鼠红细胞无核,所以巨噬细胞吞噬实验用鸡血红细胞,不用小鼠红细胞。
如果你需要,我可以把ACK 裂解液配方给你,或者对比整理「抗凝鸡血 vs 小鼠全血」对照表方便写实验报告。

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