Determination of Total Sulfur by UVF Sulfur Analyzer According to ASTM D5453
How the UVF Sulfur Analyzer work?
The UVF Sulfur analyzer adopts the principle of ultraviolet fluorescence method. After the sample was introduced into the high temperature cracking furnace, the sample underwent pyrolysis oxidation reaction. At a high temperature of about 1050ºC, the sample underwent pyrolysis oxidation, in which the sulfide was quantitatively converted to sulfur dioxide. The reaction gas is carried by carrier gas, which is removed by membrane dryer and enters the reaction chamber. Sulfur dioxide is hit by ultraviolet light at specific wavelengths, and absorption of the rays redirects some electrons to high-energy orbitals. Once the electrons have returned to their original orbits, the excess energy is released in the form of light, which is detected by photomultiplier tubes at specific wavelengths. The emitted fluorescence is specific to sulfur and proportional to the amount of sulfur in the original sample. After amplification by a micro-current amplifier and computer data processing, it can be converted into an electrical signal proportional to the light intensity, and the sulfur content of the corresponding sample can be calculated by measuring its size.
H
igh
S
ensitivity
:
The astm d5453 instrument is used to determine the total sulfur content by ultraviolet fluorescence method. It improves the ability of anti-jamming, and avoids the
complicated operation of titration pool and factors of instability which used Coulometry. So the sensitivity of the instrument is greatly improved.
The key components of the system adopt imported components to protect the detector light leakage and steam leakage and makes the machine has a reliable guarantee.
Standards:
SH/T 0689
-
2000
,
ASTM
D
5453-2006
,
EN
ISO 20846
:2004
,
GB
17930-2011
,
GB
19147-2009
, ISO 20846-2011,
System Configuration:
Standard configuration: Printer+Computer+GD-5453+Liquid Injector
Other optional parts: Solid sample injector, Gas sample injector
Easy to Operate:
Based on Windows (7, XP, Me, 98 ) English user interface to make the operation more convenient and fast. The operator only needs to click the mouse, and it can complete all of the parameter settings. The data collecting, processing, storage and printing are fully controlled by computer.
Technical Parameters:
Sample types:
Solid, Gas and Liquid
M
ethod of determination:
Ultraviolet fluorescence method (S)
Sample injection quantity
:
Solid: 1-20mg; Liquid: 5-50μL; Gas: 1-5mL
M
easuring rang
e
:
0.1~10000mg/L(High concentration should be diluted, Low concentration gas sample is up to 0.1ppm)
Measuring accuracy:
|
Concentration values (ppm)
|
Injection quantity (µL)
|
RSD
(%)
|
|
0.2
|
20
|
50
|
|
5
|
10
|
10
|
|
50
|
10
|
5
|
|
100
|
10
|
3
|
|
5000
|
10
|
3
|
Temperature range:
room temp~1150C
T
emperature-controlled precision
:
±
1C
A
ir supply requ
irements
:
High-purity argon: above 99.9%;
High
purity oxygen: above 99.9%
Power supply
:
AC220V±22V, 50Hz±0.5Hz, 1500 W
D
imension
:
Host: 305(W)×460(D)×440(H)mm
Temp controller: 550(W)×460(D)×440(H)mm
W
eigh
t
:
Host:
20kg; Temp controller: 40kg