24184 sugar alcohol acetate insecticide chromatographic column, USP G46

Supelco Chromatography SPB, USA ®- 1701 Gas Capillary GC Column Detailed Introduction:

Supelco Chromatography Department in the field of special capillary chromatography columns is the first to provide the widest variety of cyanopropyl functional group bonded phases. SPB-1701 is a medium polarity chromatographic column, which has the characteristic of forming a single/-/specific elution sequence compared to typical polydimethylsiloxane phases with a certain degree of phenyl substitution. The SPB-1701 gas chromatography column is suitable for general applications, such as the analysis of sugar alcohol acetate and insecticides. The Supelco crosslinking technique, which is unique/-/in the SPB-1701 stationary phase, can perform quantitative analysis of analytes with good reproducibility and minimize the sensitivity decrease caused by phase loss.

The SPB-1701 column with intermediate polarity has mixed functionality, which provides a better performance compared to the organic silicon phase containing phenyl groupsExclusive/-/SpecialThe characteristics of elution sequence. This chromatographic column meets the requirements of USP G46.

SPB-1701 is suitable for gas chromatography-thermal analyzer to analyze the metabolites of tobacco specific lung cancer carcinogen 4- (methylnitrosamine) -1- (3-pyridyl) -1-butanone (NNK) in human urine

SPB-1701 Gas Chromatography Column Chemical/Physical Resistance

Temperature limit: below room temperature to 280 ° C

McReynolds value: X'y'z'u ′ s ′=67 170 153 228 171

The SPB-1701 gas chromatography column parameters mainly include four aspects: stationary phase, column length, inner diameter, and membrane thickness:

Fixed phase:

According to the principle of similar solubility. Non/weakly polar column - most commonly used! Medium polarity column - suitable for complex/difficult separation; Strong polarity column - often used for special applications.

Column length:

Rapid analysis of simple samples with less than ten components typically ranging from 10 to 15m

A standard column length of 25-30m is sufficient for the vast majority of applications

Analysis of complex samples at 50m, 60m, 100m

inner diameter

0.53mm large-diameter replaceable packed column can withstand larger volume injection and trace analysis

0.32mm wide diameter, split/non split injection, able to withstand larger volume injection

0.25mm narrow diameter split injection, GC/MS application, high column efficiency

0.18mm micro diameter for fast separation and high column efficiency

0.10mm fast GC, fast separation requires high instrument requirements

film thickness

0.10um film, with low retention and column capacity, suitable for high boiling point compounds, component dense samples, or thermosensitive compounds. Standard film thickness of 0.25-0.50um is widely used

1.0-10.0um thick film retention and high column capacity suitable for low boiling point volatile compounds

Thick film is beneficial for masking active sites, but there is significant column loss at high temperatures.