摘要
涤纶中加入少量的间苯二甲酸对改进涤纶性能有一定的影响。用高效液相色谱法对涤纶样品中的间苯二甲酸的含量进行测定 ,用甲醇和氢氧化钠溶液充分水解样品 ,利用NovaparkC18柱 ,以甲醇 水 (体积比为 15∶85 ,pH 3 )溶液为流动相 ,分析了不同国家和地区的涤纶样品 。
The isophthalic acid(IPA) is present in polyethylene glycol terephthalate(PET) at small level, but plays an important role for the properties of polyester fiber Thus the PET sample was hydrolysated by 100 g/L of sodium hydrate in methanol at 70 ℃ during 10 h and finally assayed by HPLC A reversed phase high performance liquid chromatographic method for the separation of isophthalic acid from terephthalic acid(TPA) has been developed. The operating conditions were Novapak C 18 column, methanol water(15∶85, V/V )(pH 3) as mobile phase with the flow rate of 1 0 mL/min and UV detection wavelength at 254 nm
出处
《色谱》
CAS
CSCD
北大核心
2001年第4期372-373,共2页
Chinese Journal of Chromatography
关键词
高效液相色谱法
涤纶
间苯二甲酸
水解产物
分析
含量测定
聚酯纤维
high performance liquid chromatography
polyethylene glycol terephthalate fiber
isophthalic acid
hydrolysate
