Melatonin is a hormone made by the pineal gland, a small gland in the brain. Melatonin helps control your sleep and wake cycles. Very small amounts of it are found in foods such as meats, grains, fruits, and vegetables. Your body has its own internal clock that controls your natural cycle of sleeping and waking hours. In part, your body clock controls how much melatonin your body makes.
CERTIFICATE OF ANALYSIS
产品名称：褪黑素
Product Name: Melatonin
项目 | 标准 | 结果 |
Item | Requirement | Results |
外观 Appearance | 类白色至淡黄色粉末 White-cream to yellowish powder | 类白色粉末 White-cream powder |
鉴别 Identity （UV） | 符合 Conforms to standard | 符合 Conforms to standard |
熔点 | 116~120℃ | 117.5-118.0℃ |
Melting point 含量 | 100±0.5% | 99.86% |
Assay(HPLC) 纯度 | ≥99.5% | 99.88% |
Purity(HPLC 干品计) |
|
|
相关物质 | ≤0.5% | 0.12% |
Related Substances |
|
|
灼烧残渣 | ≤0.1% | 0.03% |
Residue on ignition |
|
|
重金属 | ≤20ppm | ＜10ppm |
Heavy metals 干燥失重 | ≤0.5% | 0.05% |
Loss on drying MICROBIOLOGICAL TESTS | （微生物试验） |
|
Bacteria （菌群总数） | ≤1000cfu/g | ＜1000cfu/g |
Combined molds (霉菌) | ≤25cfu/g | ＜25cfu/g |
Yeasts （酵母） | ≤25cfu/g | ＜25cfu/g |
E.coli （大肠菌群） | Negative （阴性） | Negative（阴性） |
Salmonella （沙门氏菌） | Negative （阴性） | Negative （阴性） |
