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聚乙烯硫酸鉀,日本wako原裝,500ml,大量現(xiàn)貨
聚乙烯硫酸鉀(原裝)是WAKO產(chǎn)品之一,生化實(shí)驗(yàn)用。
膠體滴定(colloid titration) 是一種簡(jiǎn)單、快速、準(zhǔn)確的測(cè)定高分子聚合物電荷的方法。Potassium Polyvinyl Sulfate(聚乙烯硫酸鉀,PVSK)于水中可形成帶負(fù)電的膠體顆粒,Glycol Chitosan(GC)或Methyl Glycol Chitosan(MGC)在酸性水溶液中帶正電,利用電性中和的原理,負(fù)電膠體顆粒的會(huì)與正電膠體顆粒反應(yīng)達(dá)到電性中和。在適當(dāng)?shù)膒H條件下,此兩種膠體可*反應(yīng)形成不溶性沉淀物。使用甲苯胺藍(lán)(Toluidine Blue,TB)為指示劑,與正電性膠體混合時(shí),兩者之間沒(méi)有反應(yīng),TB維持藍(lán)色;當(dāng)懸浮液中膠體帶負(fù)電時(shí),TB會(huì)吸附于膠體表面而現(xiàn)紫色。
滴定時(shí),正電膠體可直接以PVSK溶液為滴定液,TB為指示劑進(jìn)行滴定;對(duì)于負(fù)電荷膠體,可以直接以Glycol Chitosan 或MGC滴定,或加入已知的過(guò)量的正電膠體,再以PVSK溶液對(duì)剩余的正電膠體進(jìn)行反滴定。
WAKO(和光純藥)是世界五大實(shí)驗(yàn)室化學(xué)試劑供應(yīng)商之一,其2003年全公司銷售額為475億美圓,也是世界實(shí)驗(yàn)室試劑zui全的公司之一,長(zhǎng)期以來(lái)其一直以高品質(zhì)的試劑而*。您若需要日本W(wǎng)ako更詳細(xì)的產(chǎn)品介紹,請(qǐng)?jiān)L問(wèn)網(wǎng) 站:Search.wako-chem.com。
佰易聚生物商城提供的分子生物學(xué)試劑和試劑盒、美國(guó)聯(lián)合碳化和美國(guó)光譜醫(yī)學(xué)透析袋、培養(yǎng)基和培養(yǎng)耗材、細(xì)胞因子和細(xì)胞分離液、抗體和elisa試劑盒及常用生物試劑等,大量現(xiàn)貨火爆*,歡迎登錄www.ebioeasy.com或者,,洽談選購(gòu)!
Potassium Polyvinyl Sulfate Titration Solution (N/400)
Wako
Cat. No. 164-21655Grade: for Colloidal Titration
Storage condition: Keep at RT.
Manufacturer: Wako
Summary
The only normal solution for anion colloidal titration. It is used for the quantitative determination of cation high-molecular compounds by direct titration and for the quantitative determination of agar, mucin and high-molecular flocculants through combined use of glycol chitosan solution, which is a cation colloidal titration solution.
Appearance: Colorless - slightly yellowish brown, clear liquid
Synonym N/400 P.V.S.-K
Potassium Polyvinyl Sulfate
Polyvinylsulfuric acid potassium salt
Poly Vinyl Sulfate, Potassium Salt
Potassium Poly(vinylsulfate)
Sulfuric acid, monovinyl ester, polymers, potassium salt
Polyvinyl sulfate potassium salt
Potassium poly(vinyl sulfate)
PVSK
Sulfuric acid, monoethenyl ester, homopolymer, potassium salt
CAS NO. 26837-42-3
Molecular Weight (162.21)n
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Potassium Polyvinyl Sulfate
Wako
Grade: for Colloidal Titration
Storage condition: Keep at 2-10 degrees C.
Manufacturer: Wako
Summary
This product is for research use only. Do not administer it to human.
Colloidal titration is widely used for polyelectrolyte determination.
Positive colloid solution can be titrated with potassium polyvinyl sulfate,
and negative colloid solution can be titrated with glycol chitosan, methyl
glycol chitosan, or polydiallyldimethyl ammonium chloride.
Synonym
Potassium Polyvinyl Sulfate
Polyvinylsulfuric acid potassium salt
Poly Vinyl Sulfate, Potassium Salt
Potassium Poly(vinylsulfate)
Sulfuric acid, monovinyl ester, polymers, potassium salt
Polyvinyl sulfate potassium salt
Potassium poly(vinyl sulfate)
PVSK
Sulfuric acid, monoethenyl ester, homopolymer, potassium salt
Molecular Formula: C2H3O4SK
Appearance: White ~ pale brown, crystalline powder ~ powder or small mass
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