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    首页 分子通 按物质功能分类 分析化学 分析试剂 离子色谱试剂

    离子色谱试剂

    离子色谱试剂主要用于离子色谱技术中分离和分析样品中的阴离子和阳离子。这类试剂包括淋洗液、抑制剂、保护柱等关键组分。

    1. 淋洗液：通常包含H₂O或甲醇作为溶剂，并加入少量的酸（如磷酸）以调节pH值，增强电导检测效果。常用的淋洗液体系有碳酸氢盐-碳酸盐体系、氢氧化钠-硼酸体系等。

    2. 抑制剂：在离子色谱中使用电导抑制器时必不可少。抑制剂能够与样品中的阳离子或阴离子反应生成无电荷的络合物，从而大大降低淋洗液背景电导，提高检测灵敏度。常见的抑制剂包括二乙胺基乙醇（DEAE）、苯乙烯二甲基磺酸盐（DM18-S柱专用）等。

    3. 保护柱：由于离子色谱柱价格昂贵且容易被污染或堵塞，因此在分析前通常会预先连接一根较短的保护柱。保护柱用于截留大分子物质、胶体颗粒或其他可能损害分析柱性能的杂质。

    4. 其他试剂：

      • 标准溶液：用作定性和定量依据的标准品。
      • 洗脱液/平衡液：用于冲洗色谱系统，确保流动相连续稳定地通过检测器。
      • 吸附剂或填料：根据分析需要选择适合的离子交换树脂作为固定相。

    以上试剂和用品在使用过程中需注意保存条件（如温度、湿度）、避免交叉污染，并严格按照操作规程进行配置与更换。

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 2-Hydroxy-oestradiol-(17β) 362-05-0 C18H24O3
    2-Hydroxy-oestradiol-(17β)
    —— Imidocarb Dipropionate 55750-06-6 C25H32N6O5
    Imidocarb Dipropionate
    —— (+/-)-3<i>c</i>-hydroxy-5-oxo-tetrahydro-furan-2<i>r</i>,3<i>t</i>-dicarboxylic acid 469-72-7 C6H6O7
    (+/-)-3<i>c</i>-hydroxy-5-oxo-tetrahydro-furan-2<i>r</i>,3<i>t</i>-dicarboxylic acid
    —— Larixylacetat 4608-49-5 C22H36O3
    Larixylacetat
    —— fluoxetine-d5 1173147-79-9 C17H18F3NO
    fluoxetine-d5
    —— 6-methyl-2-[(10S,13S,14S)-4,4,10,13,14-pentamethyl-3-oxo-1,2,5,6,7,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]hept-5-enoic acid 28282-25-9 C30H46O3
    6-methyl-2-[(10S,13S,14S)-4,4,10,13,14-pentamethyl-3-oxo-1,2,5,6,7,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]hept-5-enoic acid
    —— (+)-trans-myrtanol 15358-91-5 C10H18O
    (+)-trans-myrtanol
    —— secologanoside 19351-28-1 C17H24O10
    secologanoside
    —— dehydroretronecine 480-85-3 C8H13NO2
    dehydroretronecine
    —— miquelianin 22688-79-5 C21H18O13
    miquelianin
    —— Quercetin-3-glucuronid 22688-79-5 C21H18O13
    Quercetin-3-glucuronid
    —— quercetin 3-O glucuronide 22688-79-5 C21H18O13
    quercetin 3-O glucuronide
    —— sodium [(4-aminophenyl)sulfonyl](6-chloropyrazin-2-yl)azanide 23307-72-4 C10H8ClN4O2S*Na
    sodium [(4-aminophenyl)sulfonyl](6-chloropyrazin-2-yl)azanide
    —— Pinicolic acid A 28282-25-9 C30H46O3
    Pinicolic acid A
    —— (2S)-6-methyl-2-[(10S,14S,17S)-4,4,10,13,14-pentamethyl-3-oxo-1,2,5,6,7,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]hept-5-enoic acid 28282-25-9 C30H46O3
    (2S)-6-methyl-2-[(10S,14S,17S)-4,4,10,13,14-pentamethyl-3-oxo-1,2,5,6,7,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]hept-5-enoic acid
    —— (S)-2-Hydroxyethyl 2-amino-3-methylbutanoate 4-methylbenzenesulfonate 86150-61-0 C14H23NO6S
    (S)-2-Hydroxyethyl 2-amino-3-methylbutanoate 4-methylbenzenesulfonate
    —— (1S,3S,4R,5S)-1-((E)-3-(3,4-dihydroxyphenyl)acryloyloxy)-3-((Z)-3-(3,4-dihydroxyphenyl)acryloyloxy)-4,5-dihydroxycyclohexanecarboxylic acid 19870-46-3 C25H24O12
    (1S,3S,4R,5S)-1-((E)-3-(3,4-dihydroxyphenyl)acryloyloxy)-3-((Z)-3-(3,4-dihydroxyphenyl)acryloyloxy)-4,5-dihydroxycyclohexanecarboxylic acid
    —— (S)-6-methyl-2-((5S,10S,13S,14S,17R)-4,4,10,13,14-pentamethyl-3-oxo-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)hept-5-enoic acid 28282-25-9 C30H46O3
    (S)-6-methyl-2-((5S,10S,13S,14S,17R)-4,4,10,13,14-pentamethyl-3-oxo-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)hept-5-enoic acid
    —— 1,5-dimethyl-2-phenyl-pyrazolidine-3,4-dione 1672-63-5 C11H12N2O2
    1,5-dimethyl-2-phenyl-pyrazolidine-3,4-dione
    —— 6α-Methyl-17α-hydroxyprogesteron 520-85-4 C22H32O3
    6α-Methyl-17α-hydroxyprogesteron
    —— 17-alpha-Hydroxy-6-alpha-methylpregn-4-ene-3,20-dione 520-85-4 C22H32O3
    17-alpha-Hydroxy-6-alpha-methylpregn-4-ene-3,20-dione
    —— 17α-Hydroxy-6α-methyl-pregnen-(4)-dion-(3.20) 520-85-4 C22H32O3
    17α-Hydroxy-6α-methyl-pregnen-(4)-dion-(3.20)
    —— 3-amino-6-(2,3-dichlorophenyl)-1,2,4-triazine-5-(4H)-one 252186-78-0 C9H6Cl2N4O
    3-amino-6-(2,3-dichlorophenyl)-1,2,4-triazine-5-(4H)-one
    —— Silybin 22888-70-6 C25H22O10
    Silybin
    —— silybin B 65666-07-1 C25H22O10
    silybin B
    —— [2-(9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl)-2-oxoethyl] pentanoate 2240-28-0 C27H37FO6
    [2-(9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl)-2-oxoethyl] pentanoate
    —— 1,5-dicaffeoylquinic acid 1884-24-8 C25H24O12
    1,5-dicaffeoylquinic acid
    —— 1,5-dicaffeoyl quinic acid 1884-24-8 C25H24O12
    1,5-dicaffeoyl quinic acid
    —— 1,5-di-O-caffeoylquinic acid 1884-24-8 C25H24O12
    1,5-di-O-caffeoylquinic acid
    —— 1,3-Bis{[(2E)-3-(3,4-dihydroxyphenyl)-2-propenoyl]oxy}-4,5-dihydr oxycyclohexanecarboxylic acid 1884-24-8 C25H24O12
    1,3-Bis{[(2E)-3-(3,4-dihydroxyphenyl)-2-propenoyl]oxy}-4,5-dihydr oxycyclohexanecarboxylic acid
    —— withaferin A 5119-48-2 C28H38O6
    withaferin A
    —— erythromycin A 6,9;9,12-spiroketal 23893-13-2 C37H65NO12
    erythromycin A 6,9;9,12-spiroketal
    —— Anhydroerythromycin 23893-13-2 C37H65NO12
    Anhydroerythromycin
    —— 15-[1-(4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-5-hydroxy-10,14-dimethyl-3-oxapentacyclo[9.7.0.02,4.05,10.014,18]octadec-7-en-9-one 56973-41-2 C28H38O5
    15-[1-(4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-5-hydroxy-10,14-dimethyl-3-oxapentacyclo[9.7.0.02,4.05,10.014,18]octadec-7-en-9-one
    —— 1,3-Bis[3-(3,4-dihydroxyphenyl)prop-2-enoyloxy]-4,5-dihydroxycyclohexane-1-carboxylic acid 19870-46-3 C25H24O12
    1,3-Bis[3-(3,4-dihydroxyphenyl)prop-2-enoyloxy]-4,5-dihydroxycyclohexane-1-carboxylic acid
    —— beta-Elemonic acid 28282-25-9 C30H46O3
    beta-Elemonic acid
    —— 15-[1-(4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-5,15-dihydroxy-10,14-dimethyl-3-oxapentacyclo[9.7.0.02,4.05,10.014,18]octadec-7-en-9-one 27570-38-3 C28H38O6
    15-[1-(4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-5,15-dihydroxy-10,14-dimethyl-3-oxapentacyclo[9.7.0.02,4.05,10.014,18]octadec-7-en-9-one
    —— 15-[1-(4,5-dimethyl-6-oxo-3,6-dihydro-2H-pyran-2-yl)-1-hydroxyethyl]-5-hydroxy-10,14-dimethyl-3-oxapentacyclo[9.7.0.0^{2,4}.0^{5,10}.0^{14,18}]octadec-7-en-9-one 32911-62-9 C28H38O6
    15-[1-(4,5-dimethyl-6-oxo-3,6-dihydro-2H-pyran-2-yl)-1-hydroxyethyl]-5-hydroxy-10,14-dimethyl-3-oxapentacyclo[9.7.0.0^{2,4}.0^{5,10}.0^{14,18}]octadec-7-en-9-one
    —— Quercetin 3-glucuronide 22688-79-5 C21H18O13
    Quercetin 3-glucuronide
    —— 5,6-epoxy-4,22,27-trihydroxy-1-oxo-ergosta-2,24-dien-26-oic acid 22-lactone 5119-48-2 C28H38O6
    5,6-epoxy-4,22,27-trihydroxy-1-oxo-ergosta-2,24-dien-26-oic acid 22-lactone
    —— (-)-secologanin 19351-63-4 C17H24O10
    (-)-secologanin