A C18 column was used with the mobile phase of 0.05mol/L disodium hydrogen phosphate solution (adjusted pH to 2.5 by 85% phosphoric acid)-acetonitrile-methanol (425∶475∶100), at the detection wavelength of 240 nm.
mobile phase consisted of water N,N dimethylformamide acetonitrile (68∶27∶5), including 0.0063 mol·L -1 disodium hydrogen phosphate dodecahydrate and 0.01 mol·L -1 dinatrii edetatis, and pH was adjusted to 8.5 with 10 mol·L -1 sodium hydroxide;
④The apoptosis rate detected by flow cytometer: After treated with pamidronate disodium at 5, 50, 200 μmol/L for 48 hours, the cell apoptosis rate was obviously higher than that in the blank control group [(20.48±6.02)%,(42.39±12.41)%,(54.67±15.38)%,(10.13±3.45)%,P < 0.05].
Method:C 8 BDS(HYPERSIL)column (5μm,4.6×150mm)was used and mobile phase was consisted of0.2mol/L ammonium oxalate,dimethylformamidw,and0.1mol/L disodium edetate(55∶25∶20)and adjusted with10%tetrabutylammonium hydroxide to a pH between6.2and6.5for optimal resolution by chromatography. The detection wavelength was280nm.
A C18 column was used with the mobile phase of 0.05mol/L disodium hydrogen phosphate solution (adjusted pH to 2.5 by 85% phosphoric acid)-acetonitrile-methanol (425∶475∶100), at the detection wavelength of 240 nm.
mobile phase consisted of water N,N dimethylformamide acetonitrile (68∶27∶5), including 0.0063 mol·L -1 disodium hydrogen phosphate dodecahydrate and 0.01 mol·L -1 dinatrii edetatis, and pH was adjusted to 8.5 with 10 mol·L -1 sodium hydroxide;
Methods A C_(18) column was used with the mobile phase of 0.05 mmol/L disodium hydrogen phosphate solution(adjusted to pH 2.5 with 85% phosphoric acid solution)-acetonitrile-methanol(425∶475∶100),at the detection wavelength of 240 nm.
方法采用D iam onsil C18色谱柱,0.05 mm ol/L磷酸二氢钠溶液(用85%磷酸溶液调节pH值至2.5)乙-腈-甲醇(425∶475∶100)为流动相,流速1.0 m l/m in,检测波长240 nm。
④The apoptosis rate detected by flow cytometer: After treated with pamidronate disodium at 5, 50, 200 μmol/L for 48 hours, the cell apoptosis rate was obviously higher than that in the blank control group [(20.48±6.02)%,(42.39±12.41)%,(54.67±15.38)%,(10.13±3.45)%,P < 0.05].
While 1,25-hydroxyvitamin D_3 with 10~(-11)mol/L~10~(-9)mol/L doses and Disodium cromoglycate with 10~(-9)mol/L ~ 10~(-6)mol/L doses had no cytotoxicity on hypertrophic scar fibroblasts(P<0.05).
The method for preparing intermediate disodium 2, 3, 5, 6-tetrahydroxy-piperazine-1, 4-disulphonate (SP) and 2, 5-diacetoxy-3, 6-dinitrato-1, 4-dinitropiperazine (DN) for TN has been improved.
Methods 7 kinds of antibiotics, dexamethasone phosphate disodium salt and salicylic acid were separated on a C18 column using methanol∶acetonitrile-aqueous solutions∶0.01 mol/L oxalic acid=11∶22∶67 (V∶V∶V) as the mobile phase at a flow rate of 0.8 ml/min, with the column temperature 25 ℃ and detection wave 240 nm and 268 nm.
By using drop-volume method, the surface tension of disodium hexadecyl diphenyl ether disulfonate (C16,MADS) was measured in different NaCl concentrations (0～0.50 mol·L-1 NaCl) at different temperatures (298.0～318.0 K).
METHODS The phenomenex C_ 18 column(150 mm×4.60 mm,5 μm)was used with the mobile phase of 0.02 mol·L -1 disodium hydrogen phosphate-acetonitrile(30∶70)at the detection wavelength of 210 nm.
The influence of protoporphyrin IX derivatives-2,4-di(1-methoxyethyl)-deuteroporphyrin IX disodium salt (dimegin) and hematoporphyrin IX (HP)-on the activation of human platelet soluble guanylate cyclase by sodium nitroprusside was investigated.
The complexation of samarium(III) with disodium 2-(2-hydroxy-3-sulfo-5-nitrophenylazo)naphthalene-1,8-dihydroxy-3,6-disulfonate (R) was studied in the presence and absence of cetyltrimethylammonium bromide (CTMABr).
Bismuth electrodeposition from baths containing bismuth nitrate, trilon B (disodium ethylenediaminetetraacetate Na2H2Edta), and sulfosalicylic acid H3SSA was studied with various ratios of the bath components.
The inorganic salts of antimony, arsenic and bismuth are toxic substances, but their hard dissociated organic derivatives are less toxic and are widely used in the- rapy. Organic chelating compounds such as ethylenediaminetetraacetic acid (I) are often used as agents for detoxification of heavy metals. It appears that complexes formed by therapeutic metals and ethylenediaminetetraacetic acid would be less toxic as well and might be useful therapeutically. Such compounds have been prepared in the present wor...
By the action of ethyl meso-α, β-dibromosuecinate and ethyl dl-α, β-dibromo-succinate respectively on disodium salt of catechol, the corresponding ethyl meso-(Ⅱ), b. p. 157—160°/4mm. and dl-benzodioxan-(1, 4)-dicarboxylate- (2,3) (Ⅶ),b. p. 156—160°/7mm., were prepared. The latter compounds, on treating with concentrated ammonium hydroxide, methyl amine (in ethyl alcohol) and ethyl amine(in ethyl alcohol)respectively, were transformed to the corresponding diamides and N, N'-substituted diamides, namely...
A rapid method for the determination of CaO and MgO in Hematite is proposed. The sample sintered with a mixture of Na2CO3 and K.2CO3 and boiled in 2N HNO3 to dissolve the Lime and Magnesia. The extract is treated with urea to precipitate the small amount of Iron dissolved. The sum of CaO and MgO is determined by titration with ethylenediamine tetracetic acid (disodium salt). Lime is determined after precipitation as the oxalate and MgO is found by difference. Or alternatively, Magnesia is determined c...
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