Model | J-815(Jasco International Co., Ltd) |
---|---|
Operating time | 09:00 ~ 18:00 |
Location | POSTECH Chem. Bldg. # 324 |
inquiry |
Prof. Kim, Wong Jong 054-279-9960 wjkim@ibs.re.kr |
Explanation
Measurement of measure circular dichroism (CD) is important to many experiments such as protein folding studies, protein conformational studies, DNA/RNA interactions, enzyme kinetics, purity testing of optically active substances, quantitative analysis of pharmaceuticals, natural organic chemistry, biochemistry and macromolecules, and rapid scanning (time resolved) experiments.
Specification
● Light source: 150W air-cooled Xe lamp
● Measurement wavelength range: 163 to 900 nm
● Wavelength accuracy: ±0.2 nm (at 163 to 180 nm), ±0.1 nm (at 180 to 250 nm), ±0.3 nm (at 250 to 500 nm), ±0.8 nm (at 500 to 800 nm), ±2.0 nm (at 800 to 1100 nm)
● Wavelength repeatability: ±0.05 nm (at 163 to 250 nm), ±0.1 nm (at 250 to 500 nm), ±0.2 nm (at 500 to 1100 nm)
● Spectral bandwidth: 0.01 to 15 nm
● Slit width: 1 to 3000 μm
● Digital Integration Time (D.I.T.): 0.5 msec to 32 sec
● Acquisition modes: Wavelength scan (3 modes), Time scan (slow and fast kinetics), Temperature scan
● Scanning speeds: 1 to 10000 nm/min (continuous scan)
● Data interval: 0.025 to 10 nm (continuous scan), 0.1 to 100 nm (step scan), 0.5 msec to 60 min (time course)
● CD full scale: ±10, 200, 2000 mdeg
● CD resolution: 0.0005 mdeg (at ±10 mdeg full scale), 0.01 mdeg ( at ±200 mdeg full scale), 0.1 mdeg ( at ±2000 mdeg full scale)
● Stray light: Less than 0.0003% (200 nm)