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FT-IR Spectrometer
FTIR-650 is a single beam FTIR spectrometer. This instrument is operated by a PC. It is a powerful tool to analyze the sample structure in many fields such as petroleum, chemical engineering and pharmaceutical.
Product Features
High stable optical system
● The design integrates main components to an optical bench machined from a cast aluminum. Highly stable and no need for adjustment, re-moving troubles of maintenance of optical path.
● Precision machinery ensures high repeatability of every scanning. Advanced design concept is adopted in both optical path and every part
● The system’s corner cube optics provides easy operation without requiring complicated electronics and additional moving parts. In addition, many components of the spectrometer are user replaceable which saves time over the lifetime of the instrument. ● Internal dynamic collimation system and movable mirror driving system keep interferometer at optimum situation. Voice-coil driver and precision slide improves the ability of working in severe conditions.
● The spectrometer includes a container of desiccant that protects the beam splitter and other optical components from moisture damage.
General Specifications
Wavenumber range | 4000-400cm-1/7800-350cm-1 |
Resolution | 1.5cm-1/1.0cm-1 |
Signal to noise | 15000:1/3000:1 ( P-P value, 4cm-1, sample and background scan for 1 min at 2100cm-1) |
Detector | High resolution DLATGS detector(imported) |
Beam splitter | Multi layer coated KBr |
Light source | Long life, air cooled IR light source |
Electronic system | A/D converter of 24 bits at 500MHz, USB 2.0 |
Power | AC110V-220V, 50HZ |
Dimension | Main machine: 450mmx350mmx210mm Press: 340mmx320mmx600mm |
weight | Main machine: 20kg Press: 48.5kg other accessories: 4kg |
Presser | 0-24TON |
Data transmission interface | USB2.0 |
Support system | Windows XP, windows Vista, windows 7, windows 8 |
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For the pharmaceutical industry solutions
Compression method is a traditional method of infrared spectroscopy, only thinner, agate mortar, tablet press and tablet press can be sample preparation, is a simple and easy way.
A blank sheet made of potassium bromide or potassium chloride was used to record the spectra. The baseline should be about 75% transmittance. Except for 3440cm-1 and 1630cm-1, there was a certain absorption peak due to residual or attached water. The area should not exhibit an absorption band greater than 3% transmittance.
(1) solid powder compression method – operating procedures
① the amount of test products: about 1.0 ~ 1.5mg (drying)；
② the amount of thinner: about 200 ~ 300mg (drying)；
③ grinding process: full grinding (no obvious particles is appropriate)；
④ Preparation of the sample: into the tablet mold, even paved, under normal pressure or vacuum production (excluding air and moisture), close the hydraulic valve, pressurized to 8 ~ 10MPa, standing 10-15s, pressed into pieces；
⑤ for the test piece requirements: visual inspection should be uniform and transparent, no obvious particles.
(2) Note on the tablet method
① samples and diluent preparation before the need for drying (to prevent the impact of water)；
② samples and potassium bromide to be grinding evenly (to prevent the scattering phenomenon)；
③ compression molding after the need to slow decompression (to prevent the film cracks)；
④ mold used after the first use of alcohol cotton wipe clean, and then clean, dry soft paper or soft cloth wipe clean (to prevent the mold rust)；
⑤ For chlorine-containing samples, the use of potassium chloride tablet for comparison test; if the spectrum is completely consistent with the use of potassium bromide tablet, such as the spectrum is inconsistent, you must use potassium chloride tablet (to prevent ion exchange).
(3) Membrane method – liquid sample
Liquid samples such as various types of oil or ethanol qualitative analysis, just a small amount of stainless steel shovel to take a small amount of sample coated with potassium bromide window can be measured.
Conditions of Use
Ambient temperature: 16 ℃ ~ 25 ℃；
Humidity range: 20% to 50%；
Power supply: AC100V ~ 240V, 47Hz ~ 63Hz 1.2A, good grounding；