| 货号 | 包装规格 | 操作 |
|---|---|---|
| 77148-1PAK-F | 50 discs |
X-Factor Discs are used for the presumptive identification of Haemophilus species based on their requirements for X or V growth factors or both. Members of the genus Haemophilus require accessory growth factors for in vitro growth. Some Haemophilus spp. require X factor (hemin) alone, V factor (nicotinamide adenine dinucleotide [NAD]) alone, or a combination of both. Consequently, this significant difference in growth factor requirements of Haemophilus spp. allows for their differentiation. X factor comprises protoporphyrin IX, also called hemin or other iron-containing porphyrins. These are required for growth because X-dependent strains cannot convert d-aminolaevulinic acid to protoporphyrin. The organisms will grow only around the disk that provides the appropriate factor for their growth. Hence, differentiation is based on the presence or absence of growth around the discs impregnated with X-factor.
X-Factor圆盘用于嗜血杆菌菌种的推定鉴定，并在食品和乳制品工业、水工业、制药实验室检测、化妆品工业、环境和卫生检测、临床诊断等各个领域得到应用。
50 片/包（浸渍血晶素的无菌滤纸）
| 英文名称 | X-Factor Disks |
| NACRES | NA.85 |
| UNSPSC | 41171621 |
| 无菌 | 无菌的 |
| 产品系列 | 生物化学 |
| 形态 | 盘 |
| 保质期 | 有限保质期，标签上标注有效期 |
| 包装 | 每包50张光盘 |
| 技术 | 微生物识别|生长和活力：适宜 |
| 应用 | 食品和饮料临床检验.微生物学 |
| 适用性 | 嗜血杆菌（种） |
| 质量等级 | 100 |
| 储存温度 | −20°C |
| 包装规格（货号 77148-1PAK-F） | 50 discs |
