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TLC Kieselguhr F254

产品编号:4169940
规格:pkg of 25 plates, plate L × W 20 cm × 20 cm, glass support
包装规格:25 UNITS
产品类别:进口试剂
品牌:Supelco
优惠价:立即咨询
产品价格
产品编号包装单位单价(元)国内现货国外库存询价单
416994025 UNITS36202-5天4-6周
产品性质
material【物料】
glass support
silica gel 60 matrix
Quality Level【质量水平】
100
feature【特点】
binder Organic Polymer
fluorescent indicator
packaging【包装】
pkg of 25 plates
technique(s)
thin layer chromatography (TLC): suitable
layer thickness【层厚度】
200 μm
plate L × W【板长度 × 宽度】
20 cm × 20 cm
Particle size【粒径】
10-12 μm
storage temp.【储存温度】
2-30℃
基本信息
General description【一般描述】
25 Glassplates 20 x 20 cm
Precoated Kieselguhr or mixed Silica gel/Kieselguhr plates are only of small importance nowadays. Kieselguhr layers are used like cellulose layers for the TLC separation of polar and moderately polar substances. Polyamide, on the other hand , is used for the separation of flavonoids and other phenolic substances.
Linkage【联系】
Replaces: 5738-7; 5738
Analysis Note【分析说明】
Layer thickness: 180 - 220 µm
Deviation of layer thickness per plate: ≤ 35 µm
Chromatographic testing:
amino acid test
hRf-values
- β-alanine, short-time test:
20 - 30
- L-alanine, amino acid test: 40 - 50
- DL-Valin, amino acid test: 75 - 85
- L-leucine, amino acid test: 88 - 95
Typical value determined on a plate
Eluent: n- propanol/ water (80/20 v/v)
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