Lithium dodecyl sulfate
目录号 : GC67466
Lithium dodecyl sulfate 是一种阴离子去污剂和表面活性剂，在低温电泳中可代替 SDS。Lithium dodecyl sulfate 可用于合成纳米材料和色谱分析。
Cas No.:2044-56-6
Sample solution is provided at 25 µL, 10mM.
;)
,-1-7$$$37316672.jpg');)
;)
;)
$$$36806353.jpg');)
;33(7)%EF%BC%9A546-561$$$37156877.jpg');)
;)
;)
;)
%201124-1138.$$$35908550.jpg');)
%20766-780.$$$37100057.jpg');)
%20418-432.$$$36893736.jpg');)
%EF%BC%9A-240-255.$$$35108512.jpg');)
533-545$$$36543525.jpg');)
%201-13.$$$36600053.jpg');)
;)
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Lithium dodecyl sulfate is an anionic detergent and surfactant that can be used in place of SDS for electrophoresis under low temperatures. Lithium dodecyl sulfate can be used for synthesis of nanomaterials and chromatography[1].
[1]. Delepelaire P, et, al. Lithium dodecyl sulfate/polyacrylamide gel electrophoresis of thylakoid membranes at 4 degrees C: Characterizations of two additional chlorophyll a-protein complexes. Proc Natl Acad Sci U S A. 1979 Jan;76(1):111-5.
| Cas No. | 2044-56-6 | SDF | Download SDF |
| 分子式 | C12H25LiO4S | 分子量 | 272.33 |
| 溶解度 | 储存条件 | 4°C, away from moisture | |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
||
| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
 |
1 mg | 5 mg | 10 mg |
| 1 mM | 3.672 mL | 18.3601 mL | 36.7202 mL |
| 5 mM | 0.7344 mL | 3.672 mL | 7.344 mL |
| 10 mM | 0.3672 mL | 1.836 mL | 3.672 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Lithium dodecyl sulfate/polyacrylamide gel electrophoresis of thylakoid membranes at 4 degrees C: Characterizations of two additional chlorophyll a-protein complexes
Proc Natl Acad Sci U S A 1979 Jan;76(1):111-5.PMID:16592604DOI:10.1073/pnas.76.1.111.
Lithium dodecyl sulfate/polyacrylamide gel electrophoresis of Chlamydomonas reinhardtii thylakoid membranes at room temperature gave two chlorophyll-protein complexes, CP I and CP II, as had been reported previously. However, when the electrophoresis was performed at 4 degrees C, there was an increase in the amount of chlorophyll associated with CP I and CP II, and in addition, three other chlorophyll-protein complexes appeared. Two of these complexes, designated CP III and CP IV, were characterized and found to be similar in their compositions. Each complex contains four to five molecules of chlorophyll a, one molecule of beta-carotene, and one polypeptide chain. The apoprotein of CP III is polypeptide 5 (M(r) 50,000) and that of CP IV is polypeptide 6 (M(r) 47,000); the two polypeptides are structurally unrelated. Chlorophyll-protein complexes similar to C. reinhardtii CP III and CP IV were also detected in higher plants (e.g., Pisum sativum). The apoproteins of the higher plant complexes are immunochemically related to those of the C. reinhardtii complexes, as shown by crossed immunoelectrophoresis. Absorption spectra of CP III and CP IV at -196 degrees C revealed a component at 682 nm. This observation, together with the previous results on photosystem II mutants [Chua, N.-H. & Bennoun, P. (1975) Proc. Natl. Acad. Sci. USA 72, 2175-2179], provides indirect evidence that CP III and CP IV may be involved in the primary photochemistry of photosystem II.
Binding of Lithium dodecyl sulfate to polyacrylamide gel at 4 degrees C perturbs electrophoresis of proteins
Anal Biochem 1986 Jul;156(1):11-6.PMID:3740404DOI:10.1016/0003-2697(86)90146-6.
Although polyacrylamide gel has no affinity to Lithium dodecyl sulfate (LDS) at 25 degrees C, the gel maximally binds 17 mg of LDS per gram dry weight at 4 degrees C. When polyacrylamide gel electrophoresis is carried out at 4 degrees C in the presence of LDS instead of sodium dodecyl sulfate (SDS) using a continuous buffer system, migration of proteins with lower molecular weight is accelerated as a result of the deficiency of LDS in the frontal region of the gel. When the gel is saturated with LDS, electrophoresis in the presence of LDS at 4 degrees C shows a resolution higher than that of SDS-polyacrylamide gel electrophoresis at 25 degrees C.
Specific Ion Effects of Dodecyl Sulfate Surfactants with Alkali Ions at the Air-Water Interface
Molecules 2019 Aug 10;24(16):2911.PMID:31405189DOI:10.3390/molecules24162911.
The influence of Li+, Na+ and Cs+ cations on the surface excess and structure of dodecyl sulfate (DS-) anions at the air-water interface was investigated with the vibrational sum-frequency generation (SFG) and surface tensiometry. Particularly, we have addressed the change in amplitude and frequency of the symmetric S-O stretching vibrations as a function of electrolyte and DS- concentration in the presence of Li+, Na+ and Cs+ cations. For the Li+ and Na+ ions, we show that the resonance frequency is shifted noticeably from 1055 cm-1 to 1063 cm-1 as a function of the surfactants' surfaces excess, which we attribute to the vibrational Stark effect within the static electric field at the air-water interface. For Cs+ ions the resonance frequency is independent of the surfactant concentration with the S-O stretching band centered at 1063 cm-1. This frequency is identical to the frequency at the maximum surface excess when Li+ and Na+ ions are present and points to the ion pair formation between the sulfate headgroup and Cs+ counterions, which reduces the local electric field. In addition, SFG experiments of the O-H stretching bands of interfacial H2O molecules are used in order to calculate the apparent double layer potential and the degree of dissociation between the surfactant head group and the investigated cations. The latter was found to be 12.0%, 10.4% and 7.7% for Lithium dodecyl sulfate (LiDS), sodium dodecyl sulfate (SDS) and cesium dodecyl sulfate (CsDS) surfactants, which is in agreement with Collins 'rule of matching water affinities'.
Solute-solvent interactions in micellar electrokinetic chromatography. Selectivity of lithium dodecyl sulfate-lithium perfluorooctanesulfonate mixed-micellar buffers
J Chromatogr A 2001 Jan 12;907(1-2):257-65.PMID:11217033DOI:10.1016/s0021-9673(00)01038-4.
The solvation parameter model has been applied to the characterization of micellar electrokinetic chromatographic (MEKC) systems with mixtures of Lithium dodecyl sulfate and lithium perfluorooctanesulfonate as surfactant. The variation in MEKC surfactant composition results in changes in the coefficients of the correlation equation, which in turns leads to information on solute-solvent and solute-micelle interactions. Lithium perfluorooctanesulfonate is more dipolar and hydrogen bond acidic but less polarizable and hydrogen bond basic than Lithium dodecyl sulfate. Therefore mixtures of Lithium dodecyl sulfate and lithium perfluorooctanesulfonate cover a very wide range of polarity and hydrogen bond properties, which in turn results in important selectivity changes for analytes with different solute properties.
Isolation and characterization of the pigment-protein complexes of Rhodopseudomonas sphaeroides by Lithium dodecyl sulfate/polyacrylamide gel electrophoresis
Proc Natl Acad Sci U S A 1980 Jan;77(1):87-91.PMID:6965795DOI:10.1073/pnas.77.1.87.
When purified photosynthetic membranes from Rhodopseudomonas sphaeroides were treated with Lithium dodecyl sulfate and subjected to polyacrylamide gel electrophoresis at 4 degrees C, up to 11 pigment-protein complexes were resolved. Absorption spectra revealed that the smallest complex contained reaction center pigments and the others contained the antenna components B850 and B875 in various proportions. Of these antenna complexes, the largest was almost entirely B850 and the smallest contained only B875. After solubilization at 100 degrees C and electrophoresis on polyacrylamide gradient gels, the B850 complex gave rise to two polypeptide components migrating with apparent Mr of 10,000 and 8000, whereas with the B875 complex, two components were observed with apparent Mr of 12,000 and 8000. The reaction center complex gave rise to only the 24 and 21 kilodalton polypeptide subunits. Fluorescence emission spectra showed maxima at 872 and 902 nm for B850 and B875, respectively. Analyses of bacteriochlorophyll a and carotenoids indicated that, in the B875 complex, two molecules of each of these pigments are associated with the two polypeptides. The associations of B850 and B875 in large and small complexes obtained by Lithium dodecyl sulfate treatment are consistent with models of their organization within the membrane.