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- Sigma-Aldrich
- 进口
- 71402-250G
- 2025年10月11日
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- 详细信息
- 文献和实验
- 技术资料
- 保存条件：
常温
- 保质期：
根据瓶身LOT号查询
- 英文名：
Sodium citrate tribasic dihydrate
- 库存：
有现货
- 供应商：
浙江羽翔生物科技有限公司
- CAS号：
6132-04-3
- 规格：
250G
属性
等级
Molecular Biology
质量水平
200
产品线
BioUltra
表单
crystals
技术
precipitation assay: suitable
杂质
DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
11-13% Water (Karl Fischer)
pH值（酸碱度）
7.5-9.0 (25 °C, 0.1 M in H2O)
(1) 3.138, (2) 4.76, (3) 6.40
mp
>300 °C (lit.)
溶解性
H2O: 0.1 M at 20 °C, clear, colorless
痕量阴离子
chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg
痕量阳离子
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤10 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
λ
0.1 M in H2O
紫外吸收
λ: 260 nm Amax: 0.02
λ: 280 nm Amax: 0.01
SMILES字符串
O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O
InChI
1S/C6H8O7.3Na.2H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;;2*1H2/q;3*+1;;/p-3
InChI key
NLJMYIDDQXHKNR-UHFFFAOYSA-K
应用
- 采用QuEChERS样品制备和UHPLC-MS-MS进行糙米中霉菌毒素的测定。: 在QuEChERS方法中，采用柠檬酸三钠二水合物从大米中提取霉菌毒素。该研究提供了一种检测食品中有害霉菌毒素的可靠方法，从而提高食品安全性。
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文献和实验Interfacial Redox Catalysis on Gold Nanofilms at Soft Interfaces.
Soft or "liquid-liquid" interfaces were functionalized by roughly half a monolayer of mirror-like nanofilms of gold nanoparticles using a precise interfacial microinjection method. The surface coverage of the nanofilm was characterized by ion transfer voltammetry. These gold nanoparticle films represent an ideal model system for studying both the thermodynamic and kinetic aspects of interfacial redox catalysis. The electric polarization of these soft interfaces is easily controllable, and thus the Fermi level of the electrons in the interfacial gold nanoparticle film can be easily manipulated. Here, we study interfacial redox catalysis between two redox couples located in adjacent immiscible phases and highlight the catalytic properties of a gold nanoparticle film toward heterogeneous electron transfer reactions.
) (store at 4deg.C). IPTG (isopropyl b-D-thiogalactopyranoside):25 mg/ml IPTG in double distilled water 250 mg IPTG (Sigma I-5502) ddH2 O to 10 ml (aliquot and store at -20℃) 1 M isocitrate (sodium salt-dihydrate) : 29.41 g Na3isocitrate-2H
Fibronectin Sigma F0895-2MG Glass Bottle (250ml) with Cap Cole Parmer Instrument Co. 34594
Preparation of cytoplasmic extracts for the application in a cell-free system
EGTA 250 µl of 1 M KCl 100 µl of 100 mM MgCl 5 µl of 1 M DTT 50 µl of 10 mM PMSF 10 µl of 1 mg/ml Leupeptin 10 µl of 1 mg/ml Pepstatin 10 µl of 1 mg/ml Aprotinin 2.04 ml H2O nuclease free
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