Chelex 100 树脂是包含配对亚氨基二乙酸离子(在结合多价金属离子过程中用作螯合基团)的苯乙烯二乙烯基苯共聚物。
描述
Chelex 100 树脂是包含配对亚氨基二乙酸离子(在结合多价金属离子过程中用作螯合基团)的苯乙烯二乙烯基苯共聚物。 由于Chelex 100 树脂具有羧酸基团,因此将其归为弱阳离子交换介质,但与此类交换介质的不同之处在于,Chelex100具有高专一性的金属离子选择特性,以及异常高的键强度。
Chelex 100 螯合离子交换树脂对铜、铁和其他重金属离子的选择性较钠和钾等单价阳离子强。 其对二价与一价离子的选择性大约为 5,000:1,即使在高浓度盐溶液中,它也对过渡金属具有很强的亲和力。
提供了以下形式的 Chelex 100 树脂:
- 分析级 Chelex 100 树脂 — 已经过充分的筛选、纯化和调整,以适于准确、可重复的分析
- 生物技术级 Chelex 100 树脂 — 分析级介质经验证每克树脂所含的微生物少于 100 个
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(停产) Chelex 100 Chelating Resin, analytical grade, 50–100 mesh, sodium form, 500 g
1422822
500 g, cation exchange resin, sodium form, 1% crosslinkage, 50–100 dry mesh size, 300–1,180 µm wet bead size, ~3,500 MW limit
(停产) Chelex 100 Chelating Resin, analytical grade, 100–200 mesh, sodium form, 500 g
1422832
500 g, cation exchange resin, sodium form, 1% crosslinkage, 100–200 dry mesh size, 150–300 µm wet bead size, ~3,500 MW limit
(停产) Chelex 100 Chelating Resin, analytical grade, 200–400 mesh, sodium form, 500 g
1422842
500 g, cation exchange resin, sodium form, 1% crosslinkage, 200–400 dry mesh size, 75–150 µm wet bead size, ~3,500 MW limit
(停产) Chelex 100 Chelating Resin, analytical grade, 100–200 mesh, iron form, 100 g
1422825
100 g, cation exchange resin, iron form, 1% crosslinkage, 100–200 dry mesh size, 150–300 µm wet bead size, ~3,500 MW limit
(停产) Chelex 100 Chelating Resin, molecular biology grade, 200–400 mesh, sodium form, 50 g
1421253
50 g, molecular biology grade cation exchange resin, sodium form, 1% cross-linkage, 200–400 dry mesh size, 75–150 µm wet bead size, ~3,500 MW limit, can be used for chromatography or molecular biology applications
(停产) Chelex 100 Chelating Resin, biotechnology grade, 100–200 mesh, sodium form, 100 g
1432832
100 g, biotechnology grade cation exchange resin, sodium form, 1% crosslinkage, 100–200 dry mesh size, 150–300 µm wet bead size, ~3,500 MW limit
相关资料
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LIT544
Instruction Manual, InstaGene™ Matrix, Rev G
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LIT237
Instruction Sheet, Chelex 100 Iron Form Resin for Glyphosate Cleanup, Rev B
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LIT200
Instruction Manual, Chelex 100 and Chelex 20 Chelating Ion Exchange Resin, Rev B
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