Ask An Expert
Severity: 8192
Message: json_decode(): Passing null to parameter #1 ($json) of type string is deprecated
Filename: website/singlecatalog.php
Line Number: 25
Backtrace:
File: /home2/srekosmy/public_html/labtron.cc/application/views/website/singlecatalog.php
Line: 25
Function: json_decode
File: /home2/srekosmy/public_html/labtron.cc/application/controllers/Website.php
Line: 465
Function: view
File: /home2/srekosmy/public_html/labtron.cc/application/controllers/Website.php
Line: 68
Function: singlecatalog
File: /home2/srekosmy/public_html/labtron.cc/index.php
Line: 318
Function: require_once
Website: www.labtron.cc
Email: info@labtron.cc
Fluorescence Spectrophotometer LFS-A12 consist of a high quality 150 W Xenon light source and photoelectric multiplier tube detectors for providing sufficient light intensity signal to detect sensitivity which ranges between 200 nm to 900 nm. Features fluorescence detection limit of ≤ 1×10-10 g/ml and Water Raman peak of S/N ≥ 150. It consists of the following characteristics, namely, high detection sensitivity, fast scanning speed, high dynamic range, fast 3D scanning, etc. The main principles includes measurement of absorption and fluorescence. Absorbance measurements can be taken via one or more wavelengths. The fluorescence unit increases the measuring range by 1000 for detecting DNA.
| Light source | 150 W Xenon lamp |
| Excitation wavelength | 200 nm to 900 nm |
| Emission wavelength | 200 nm to 900 nm |
| Excitation slit | 2 nm, 5 nm, 10 nm, 20 nm |
| Emission slit | 2 nm, 5 nm, 10 nm, 20 nm |
| Wavelength accuracy | ±1.0 nm |
| Wavelength repeatability | ≤ 0.5 nm |
| Signal-to-Noise Ratio | Raman peak of water (P-P): S/N ≥ 150 (10 nm Slit) |
| Detection limit | ≤1×10-10 g/ml (Quinine Sulphate Solution) |
| Linearity | γ ≥ 0.995 |
| Peak repeatability | ≤ 1.5% |
| Stability (10 min) Zero Drift | ±0.3 |
| Stability (10 min) Value Limit | ±1.5% |
| Wavelength scan speed | Multi-speed level, Maximum at 48000 nm/min |
| Photometric value | 0.00 to 10000.00 |
| Data interface | USB 2.0 |
| Maximum power consumption | 200 W |
| Power Source | AC 220 V/50 Hz; 110 V/60 Hz |
| Dimension | 380×445×310 mm |
| Net weight | 12 kg |
| Gross weight | 14 kg |
| Accessories No. | Accessories Name | Functions |
| 1 | Membrane sample rack | For membrane samples |
| 2 | Powder sample rack | For powder samples |
| 3 | Up conversion fluorescent holder | Base holder for other racks |
| 4 | Octave Double-frequency elimination filter (300 nm,350 nm,400 nm,450 nm,500 nm,550 nm,600 nm,650 nm for one set) | Remove the interference of double-frequency peaks of these wavelengths |
| 5 | Auto polarization filter | - |
| 6 | Sample cell jacket | - |
| 7 | Peltier temperature (15 to 40°C) control holder | - |
Fluorescence Spectrophotometer finds application in material research, pharmaceutical analysis, biochemical and clinical testing, water quality analysis and control, food safety testing.