Reducing-vaporization mercury analyzer
Simple and small, but powerful & multi-configurable with new full color touch panel
Excellent operability with a full color, multi-touch display
The RA-5 is innovational reducing-vaporization mercury analyzer that is equipped with the world’s highest level of performance in the body that is the smallest in its class. Compared to our previous model RA-3A, the installation space is reduced to half or less (about A4 size).
We are sure you will be satisfied with its excellent operability and ease of maintenance since intuitive operation is realized by using a full-color LCD touch panel.
The high sensitivity and high accuracy are only available by the equipment dedicated to mercury measurement and further enhanced by the newly designed detector. The sensitivity of the equipment is sufficient to determine even a small amount of mercury below the lower limit specified in the Waterworks Act.
Simple, yet powerful
Samples are wet-pretreated according to measurement methods described in standards such as JIS K0102 to transform all mercury into divalent mercury ion (Hg2+).
When Tin (II) Chloride solution is added to the wet-pretreated sample, divalent mercury ion (Hg2+) is reduced to zero-valent metal mercury, and, by using mercury bubblers, the metal mercury turns into mercury gas.
The acid mist and water vapor that are generated during mercury bubbling are removed by the use of the electronic cooling unit and other devices, the mercury gas is introduced into the absorption cell, and the mercury is measured by atomic absorption spectroscopy.
We are sure that its intuitive operation will satisfy users who are beginners of mercury measurement, and that its rich specifications will satisfy advanced users as well.
Equipped new functions
- Due to an installed touch panel type PC, there is no need to connect the equipment to other PC. (Retrieval of measurement data and connection to a printer or mouse can be more simplified with a USB interface.)
- Daily inspection to check the equipment stability is automated.
- The minimum amount of samples required for measurement is 5mL. The conventional reducing-vaporization unit (20mL) can be used.
- The peak for mercury and the peak for other substances are automatically identified.
- A wide measurement range up to 400ppb is realized.
- This equipment has a countermeasure function against high-concentration contamination to keep the measurement accuracy.
|Mercury detecting section||Measurement Principle||Non-dispersive double-beam cold vapor atomic absorption spectrometry|
|Measurement method||Reducing Vaporization with open air-supply (Peak height measuring and integration measuring selectable)|
|Light source||Low pressure mercury discharge lamp|
|Detector||Semiconductor sensor (w/254nm bandpass filter)|
|Detection Limit||0.0025ng/5mL (0.5ppt)|
*5ppt in case of including chemical treatment
|Maximum range||2,000ng/5mL (400ppb)|
|Carrier gas required||No Compressed Purified Gas required|
|Measuring flow rate||Adjustable (0.1~1.0 L/min)|
(just operate with ambient air)
|Mercury removal||Removal by activataed carbon|
|Data processing system|
|Software||RA5 data processing system|
|Display screen||8inch color liquid crystal display|
|Display||Peak wave shape, Calibration curve, Measuring time and measuring result|
|Control||Touch panel key control|
|Data processing software||Selectable from 6 formulas (3 linear and 3 3rd Order fits), Correlation coefficient is automatically calculated. Statistic calculation: Mean value, standard deviation, Coefficient of variation (All values are automatically calculated.), Self-check function|
|Measuring conditions, Calibration curve, Measured values, Statistical calculations, Peak wave shape and Measuring time|
|Quality control||Check standard, Avoid abnormally high mercury etc|
|Data output||USB enabled printer & LIMS|
|Installation requirements||Installation dimensions||248W x 253D x 175H (mm)|
|Installation environment||5°C~35°C, < 85%RH|
(Non condensing environment is allowed)
|Power supply||AC, single phase, 100~240V 50/60 Hz (AC adaptor included)|
The RA-5 is suitable for a wide variety of aqueous samples, including digested solids.
It can be used for mercury analysis in drinking waters, industrial wastewaters, fresh water sources, seawater, soils, sludges, tissues & more.
USEPA 245.1, 245.2, 245.5, 7470A, 7471B,
ASTM D 3223-02, EN-1483, APHA 3112,
JIS K0102 and more
SC-5 auto sample changer
|Sample vessel: Number||
[Standard]: Sample vessel for 5mL: 30 (with vessel sensor function)
[Option]: Sample vessel for 20mL: 12 (with vessel sensor function)
Sample vessel for 100mL and 250mL: 5 (with vessel sensor function)
|Sample access||Random access|
|Bubbler tube||PEEK tube (for sample 5mL)/Glass Frit (for sample 20, 100 and 250mL)|
|Power supply||DC24V (AC adaptor included)|
|Measurement||180W x 250D x 490H|
RD-5 auto dispenser
|Dispensing||Tube pump (3 lines)|
|Dispensing volume||Adjustable (Minimum 0.1mL~)|
|Dispensed reagents||· Sulfuric acid
· Tin (II) chloride solution
· Hydroxylamine hydrochloride solution
|Control, Power supply||Direct pump driving from RA-5|
|Measurement||250W x 230D x 80H (with RA-5 connection)|
|Weight||Approx. 2kg (Stand inclusive)|