L-半胱氨酸盐酸盐无水物(L-Cysteine hcl anhy)

JIZHOU CITY HUAYANG CHEMICAL CO., LTD. Add:NO.645 FuYang East Road, Jizhou City, Hebeiprovince, China Phone: +86-318-8638826Fax:+86-318-8638826 CERTIFICATE OF ANALYSIS [table][tr][td] Product Name:L-Cysteine HCl Anhydrous[/td][td] Quantity: 1000kg[/td][td] Batch No: 1025390105[/td][/tr][tr][td] Producing date: 2010.05.25[/td][td] Sampling date: 2010.05.25[/td][td] Shelf life: two years[/td][/tr][tr][td] Reference standard: AJI 92[/td][/tr][tr][td] Item[/td][td] Specifications[/td][td] Test Results[/td][/tr][tr][td] Assay,% [/td][td] 98.0-102.0[/td][td] 99.6[/td][/tr][tr][td] Specific optical rotation[/td][td] + 5.6o~ + 8.9o[/td][td] + 6.45o[/td][/tr][tr][td] State of solution,% [/td][td] ≥98.0[/td][td] 98.6[/td][/tr][tr][td] Heavy metals (Pb) [/td][td] ≤15ppm[/td][td] 3ppm[/td][/tr][tr][td] Residue on ignition, %[/td][td] ≤0.4[/td][td] 0.07[/td][/tr][tr][td] Iron(Fe),[/td][td] ≤15ppm[/td][td] 6ppm[/td][/tr][tr][td] Loss on drying,% [/td][td] ≤1.0[/td][td] 0.80[/td][/tr][tr][td] pH value[/td][td] 1.5-2.0[/td][td] 1.7[/td][/tr][tr][td] Arsenic (asAs), [/td][td] ≤1ppm[/td][td] 0.4ppm[/td][/tr][tr][td] Other amino acids, % [/td][td] Chromatographically not detectable[/td][td] Qualified[/td][/tr][tr][td] Conclusion: This product conforms to AJI 92 standard.[/td][/tr][/table] Operator: Jia Jingtan Checker: Liu Qingshuang