Liquid NO nCLD 88

Nitric Oxide Analyzer for Liquid NO Samples


  • Reduction of nitrate using vanadium(III) and hydrochloric acid at 90 ˚C.
  • Reduction of nitrite using iodide and acetic acid
  • Reduction of nitroso thiols using a modified Saville reaction or Cu/Cystine.


  • Fast and precise
  • Compact
  • User friendly software package
  • Biomedical and laboratory applications
  • Measurement of gas and liquid samples


0.1 ppb – 5’000 ppb

Minimum Detectable Concentration

< 0.1 ppb


NO / NOx


Nitric Oxide Analyzer for Liquid NO Samples

The ECO PHYSICS analyzer nCLD 88 offers precise measurement of nitric oxide. The extremely high sensitivity and fast response time of the NO-analyzer allows the detection of concentrations in the range of parts per trillion. Ease of use guarantee flexibility for standard applications as well as scientific research. In combination with the liquid purge vessel the nCLD 88 measures nitrites, nitrates and nitroso thiols in biological fluids like plasma, urine and sera down to pMol concentrations. The easy and accurate data recording and analysis is guaranteed by using the PowerChromTM software from EDAQ.

User Friendliness
The new touch sensitive graphical user interface enables the user to individually adjust the instrument operation and data management according to his/her needs and applications. The bright 7” monitor gives a clear overview and allows numerical and graphical display of values. Multiple digital in- and outputs guarantee a maximal connectivity and flexibility for the remote operation, control and maintenance of the nCLD 88.

Compact, Modular and Intelligent!
The nCLD 88 is manufactured in a new compact and modular layout, where each essential component of the chemiluminescence analyzer hosts its own CPU and interacts with other CPUs by BUS-communication. This assembly increases accessibility and serviceability by reducing wiring and piping.

NO related parameters
Measurement range 0.1 ppb to 5’000 ppb (gas samples)

pico – to millimolar (liquid samples)

Detection limit < 0.1 ppb, sample tube type 1 (recommended)

< 0.06 ppb, sample tube type 3

Lag time < 0.6 s, sample tube type 1

< 0.5 s, sample tube type 3

Rise time (0-90%) < 0.1 sec
Fall time (0-90%) < 0.1 sec
Internal sampling rate 40 Hz
Data output rate 15 Hz
Linearity < 1% of full scale
Zero-point drift < 0.5 ppb / 6 h
Operating specifications
Interface USB(2x), HDMI, Bluetooth, RS232 (w/o 9pin connector), LAN, WLAN
Temperature range 10 to 40°C
Permitted humidity range 5 to 95% rel. h (non-condensing)
Sample flow rate 110 ml/min ±10 %, sample tube type1 (recommended)

330 ml/min ±10 %, sample tube type3

Cal. gas concentration 0.1 to 4 ppm NO in N(1 ppm recommended)
Cal. gas flow rate approx. 600 ml/min
Inlet supply 200 to 800 kPa (2 to 8 bar), 1/8’’ Swagelok
Power uptake 400 VA max
Mains voltage 100 to 240 V, 50/60 Hz
Dimensions (Width x Height x Depth) 500 mm x 135 mm x 540 mm / 19 x 5 ¼ x 17 inch
Weight 24 kg
Standard nCLD 88: NO analyzer
Options · automatic calibration module for zero level and span reference gas

· USB-RS232 9pin connector

· analog output (external box): 4-20 mA into 500 Ω max.; 0 – 10 V


ECO PHYSICS reserves the right to change these specifications without notice.

Further information can be found in the Product Brochure

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