SF-16A Thin Layer Chromatography

SF-16A Thin Layer ChromatographyWe have adopted full electronic flow control technology and high-precision CNC machining technology, and used a large screen full Chinese touch screen to ensure the accuracy and operability of experimental analysis data. Widely used in the analysis and detection of crude oil, heavy oil, residue oil, wax oil, slurry oil, lubricating oil, base oil, chromatographic fixatives, oils and fats, and traditional Chinese medicine. Can quickly analyze saturated hydrocarbons, aromatic hydrocarbons, colloids, and asphaltenes in samples. The analysis cycle is fast and only takes 2 hours, saving 96% of the analysis time compared to the traditional EC dissolution method (EC method takes 48 hours to analyze a sample). The SF-16A thin-layer chromatography analyzer has a fully enclosed process, which eliminates the need for operators to come into contact with toxic and harmful solvents, greatly protecting the health and safety of experimental personnel. The usage cost is only 1% of the traditional EC method, greatly reducing the usage cost.

Features:

Simplicity: This instrument has the characteristics of easy operation, fast analysis speed, short analysis cycle, and accurate analysis data.

Environmental friendliness: Due to the use of toluene as a solvent and its low dosage, it greatly reduces the harm to human health, which is beneficial for environmental protection and the health of operators.

Economy: The analysis stick can be reused, usually around 50 times, and only requires a small amount of solvent during the unfolding process, making the cost very low.

Universality: It can directly detect a large number of organic compounds, including high boiling point samples that are difficult to use for gas chromatography analysis. Widely used in medicine, health, and environment.

Working Principle:

SF-16A Thin Layer ChromatographyIt is composed of thin-layer separation technology and hydrogen flame ionization detection (TLC/FID) method. Dilute crude oil, heavy oil, residue oil, wax oil, slurry oil, lubricating oil, chromatographic stationary liquid, grease and other samples with diluent and dot them onto a thin layer rod coated with silica gel and alumina adsorption. After evaporating the solvent, place it in a chromatographic development tank and perform separation and development at a certain temperature and humidity. The thin layer rod sample is then entered into the detector and scanned for detection at a certain speed; The ion flow signal is collected and processed by a computer; Thus obtaining the analysis results.

Application points:

The method of determining the four components of heavy oil by thin-layer chromatography is simple, sensitive, economical, and universal. The relative standard deviation can reach 1% to 2%, and generally can also reach around 5%. However, the determination results of this method are affected by factors such as spot sampling, development conditions, and scanning conditions. Mountain chromatography greatly improves the sampling error through technical means and achieves good data repeatability through a large amount of data testing.

The new SF-16A thin-layer chromatography has the characteristics of simple operation, fast analysis speed, and short analysis cycle. Adopting fully automatic intelligent operation control, the automatic control has good reproducibility and stable and reliable mechanical performance.

Technical Indicators:

HFID stabilization time:<5 minutes, detection limit<1 × 10-9g/s;

Polarization voltage: DC250V;

Scanning speed: 50-500mm/min (optional);

Sample size: 1ug~20ug;

Signal output: 0~2000mv;

Spectrum and data processing: online collection, real-time storage, and direct spectrum processing and report output;

Ignition device: fully automatic ignition;

Voltage: 220 V/AC;

Frequency: 50/60Hz ± 5%;

Power: 120 W;

Gas and auxiliary gas: high-purity hydrogen, pure air (supplied by a random hydrogen air generator);

Flow requirements: hydrogen 0-220ml/min, air 0-1800ml/min; This range can be set arbitrarily.

Instrument configuration:

(1) Air Generator SF-3000

(2) Hydrogen Generator SFJ-300

(3) Sample unfolding cylinder x4

(4) SFZK-300 Sample Unfolding Workbench

(5) Connecting pipelines

(6) Tool set

(7) Chromatographic iodine volumetric flask x2

(8) 10ul microsampler x2

Thin layer chromatography is a type of adsorption thin layer chromatography separation method that utilizes the different adsorption abilities of each component on the same adsorbent, resulting in continuous adsorption, desorption, re adsorption, and re desorption during the flow of the mobile phase (solvent) through the fixed phase (adsorbent), thereby achieving the goal of mutual separation of each component.

Thin layer chromatography has many advantages: it maintains the characteristics of easy operation, simple equipment, and easy color development, while the development rate is fast, usually only 15-20 minutes; The mixture is easy to separate, and its resolution is generally 10-100 times higher than traditional paper chromatography. It is suitable for separating samples with only 0.01 μ g, as well as samples larger than 500mg for preparation. It can also use corrosive color reagents such as concentrated sulfuric acid and concentrated hydrochloric acid.