三级片视频播放,精品三级片在线观看,A级性爱视频,欧美+日韩+国产+无码+小说,亲子伦XX XX熟女,秋霞最新午夜伦伦A片黑狐,韩国理伦片漂亮的保拇,一边吃奶一边做边爱完整版,欧美放荡性护士videos

NUCLEOGEL® Anion I · NUCLEOSIL® Anion II

HPLC columns for analysis of inorganic anions

Features

NUCLEOGEL® Anion I:
strongly basic polymer-based anion exchanger, particle size 10 µm
pH stability: 1–14
eluent in column 4 mmol/L salicylate buffer pH 7.8
contrary to the silica-based phase also suited for fluoride analysis

NUCLEOSIL® Anion II:
Base material NUCLEOSIL® silica, particle size 10 µm, pore size 300 Å
Strongly basic anion exchanger, exchange capacity 50 µeq/g
pH stability 2–7.5
Eluent in column 0.15 mol/L diammonium hydrogen phosphate buffer pH 5.2
Recommended buffer concentration for separation of inorganic anions: 2 mmol/L phthalate
Preferred method of detection: conductivity or negative UV detection
For a typical application click here.

For more applications click here.

Ordering information

Length->

120 mm

250 mm

Guard columns*

NUCLEOGEL® Anion I

Valco type analytical columns

4.6 mm ID

719533

719543

NUCLEOSIL® Anion II

EC analytical columns

4 mm ID

720094.40

721452.40

* Valco type guard columns cartridges are 21 x 4 mm, require guard column holder C (REF 719538) and are supplied in packs of 2 (all other columns and cartridges in packs of 1).
8 x 4 mm ChromCart® guard column cartridges are coupled to EC columns using guard column adapter EC (REF 721359).