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HD-LHW60
Introduction：
Sulfide Aeration Apparatus acidifies water samples so hydrogen sulfide is carried into an absorption bottle for sulfide determination per the new national standard. Widely used for water quality sulfide analysis in environmental monitoring....
The HD-LHW60 water sulfide acidification blowing apparatus: sulfides in the water sample are acidified and the generated hydrogen sulfide is carried by carrier gas (nitrogen) into an absorption bottle/tube where it is absorbed by an absorbing solution (zinc acetate-sodium acetate or 2% sodium hydroxide). The corresponding analytical method is then used to determine the sulfide ions absorbed. Developed per the 2022 new national standard HJ 1226-2021 (Water quality – Determination of sulfides – Methylene blue spectrophotometric method), it meets the sample-pre-treatment needs for water sulfide determination.
Large-capacity reaction flask for simultaneous processing of multiple samples.
Constant-temperature water bath with a fast auto temperature-control system; heating temperature can be set manually.
Each sample's nitrogen flow is independently controlled or shut off; a needle-valve flowmeter accurately controls and displays total gas consumption.
A lift-position fixing knob adjusts the sample rack and gas-distribution system; the rotating sample rack is front-loaded for convenient operation.
Hydrochloric-acid port, gas inlet and outlet are integrated in three separated openings that do not interfere with each other.
HJ 1226-2021 – Water quality – Determination of sulfides – Methylene blue spectrophotometric method (2022 new national standard)
| Parameter | Specification |
|---|---|
| Sample count | 6 positions |
| Reaction flask | 500 ml × 6 |
| Absorption tube | 100 ml × 6 |
| Control | 7-inch large LCD touchscreen |
| Heating | Automatic constant-temperature water bath |
| Heating power | 1000 W, uniform heating |
| Nitrogen flowmeter | 0 – 3 L/min |
| Temperature range | Room temperature – 99.9 °C |
| Display | Digital |
| Temperature control accuracy | ±0.5 °C |
| Nitrogen inlet pressure | 0.1 MPa |
| Nitrogen branch flow | 0 – 1 L/min, individually adjustable |
| Power | AC 220 V, 50 Hz |
| Ambient temperature | 5 – 35 °C |
| Ambient humidity | 0 – 95% RH |
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