HORIBA LAQUA Electrodes and Accessories

Selection Guide

A guide helps select the appropriate pH electrode based on specifications and sample conditions, including conductivity, pH range, temperature, and sample type.

ToupH Standard Electrodes

These electrodes offer enhanced toughness, faster response, high accuracy, and improved stability. They incorporate technologies like pH FAST RESPONSE GLASS MEMBRANE, REFERENCE ELECTRODE WITH INCREASED STABILITY, and GLASS MEMBRANE MOLDING TECHNOLOGY.

Diagram: An illustration shows buffer response data (pH7 to pH9) over time, demonstrating fast response.

Diagram: A visual representation highlights the reduction in liquid junction clogging (1/1000).

Diagram: An illustration of glass membrane molding technology emphasizes increased strength.

9415-10C ToupH Standard Electrode

For General Laboratory Application, offering quick stability and drift reduction.

9481-10C ToupH Sleeve Electrode

For High Viscosity Application, featuring a movable sleeve for easy cleaning and clog prevention.

9418-10C ToupH Micro Electrode

For Precious Trace Amount Sample, suitable for low-volume samples as small as 50μL.

9480-10C ToupH Long Electrode

For Large Containers and Long Test Tubes, featuring a long, thin body (283mm length, 8mm diameter).

ToupH 3-IN-1 pH GLASS BODY ELECTRODES

These electrodes integrate a thermistor for higher accuracy, measuring temperature concurrently with pH.

9615S-10D ToupH Standard Electrode

For General Laboratory Application, offering quick stability and drift reduction.

9681S-10D ToupH Sleeve Electrode

For High Viscosity Application, featuring a movable sleeve for easy cleaning and clog prevention.

pH Combination Electrodes

Equipped with a 1-meter cable and BNC connector for compatibility with various pH meters. For temperature compensation, 3-in-1 pH electrodes are recommended.

9425-10C Standard Plastic Electrode

For General Field Application. Plastic body ideal for field measurement and tap/drinking water. Can be submerged up to 1m depth for 30 mins.

6069N-10C Long Electrode

For Surface and Shallow Sample Measurement, featuring a long, thin body (291 mm length, 3 mm diameter).

3-in-1 pH Glass Body Electrodes

These electrodes integrate a thermistor for higher accuracy, measuring temperature concurrently with pH.

6252-10D Needle Electrode

For Food Application, allowing measurement of food samples and aqueous solutions.

6367N-10D Standard Sleeve Electrode

For Measuring pH at High Accuracy, using a sleeve at the liquid junction for improved stability and repeatability.

3-in-1 pH Plastic Body Electrodes

Designed for portability, durability, and ease of use, these electrodes are ideal for fieldwork. They feature an integrated pH sensor, reference electrode, and temperature sensor for accurate, temperature-compensated readings.

9651-10D Gel-filled pH Electrode

For General Field Application. Gel-filled plastic body requires less maintenance and can be submerged up to 1m depth for 30 mins.

9625-10D / 9652-20D Gel-filled pH Electrode

For General Field Application. Gel-filled plastic body requires less maintenance and can be submerged up to 1m depth for 30 mins.

9625-10D / 9625-20D / 9625-30D Standard Plastic Electrode

For General Field Application. Plastic body is ideal for field measurement and tap/drinking water. Can be submerged up to 1m depth for 30 mins.

9631-10D Hydrofluoric Acid Resistant Electrode

For Measuring Hydrofluoric Acid and Etching Drain Water. Can measure 1% hydrofluoric acid solution.

9632-10D Strong Alkali Resistant Electrode

For Stable pH Measurement in Strong Alkali Solutions. Features an alkali-resistant glass membrane for higher resistance and longer stability.

9630-10D Standard Plastic Electrode

For Tap Water. Suitable for tap water measurement and quality control. Can measure samples with low conductivity or buffering capacity.

PUREIL Electrode

This advanced pH electrode is designed for Ultra-Pure Water Analysis, utilizing gelled ionic liquid technology to eliminate KCl leakage. This breakthrough design ensures accurate pH measurement in low ionic strength solutions where conventional electrodes may fail.

Comparison: Conventional electrodes use KCl solution, which can leak and contaminate samples, leading to drift. PUREIL electrodes offer maintenance-free operation, faster response, and stable readings in challenging samples.

9600-10D PUREIL Electrode

For Low Conductivity Water and Solutions Reacting with KCl. Ideal for pure water, deionized water, and solutions that react with KCl or contain ions that form precipitates.

Diagram: An illustration compares the KCl diffusion in conventional electrodes versus the minimal ionic liquid dissolution in PUREIL electrodes.

ISFET Electrode

This next-generation ISFET Electrode Technology uses a semiconductor response membrane, making it suitable for environments where glass electrodes cannot be used. It is crack-resistant and unbreakable.

Diagram: A sectional drawing illustrates the tip of a Flat ISFET electrode.

0040N-10D ISFET General pH Electrode

Ideal for measuring samples in shallow containers, gelatinous materials, and for surface measurement of meat, paper, skin, and cloth. The semiconductor sensor prevents damage.

Diagram: Shows the components of an ISFET sensor tip, including the Si substrate, reference electrode, and membrane.

3-IN-1 ORP Electrodes

These electrodes feature flat platinum tips for low-volume sample measurement and integrated thermistors for accurate temperature reading during ORP measurement.

9300-10D Standard ORP Electrode

For General Laboratory Application. Waterproof and refillable with 3.33M KCl.

9301-10D Gel-filled ORP Electrode

For General Field Application. Waterproof and maintenance-free.

DO Electrodes

HORIBA Dissolved Oxygen (DO) electrodes are galvanic probes with integrated temperature sensors, allowing immediate calibration in air. They feature replaceable DO tips, eliminating the need for membrane replacement or electrolyte refilling.

9521-10D DO Electrode

For General Laboratory Application. Waterproof, suitable for lab BOD measurements. Comes with replaceable DO tip 7544.

9551-20D / 9551-100D DO Electrode

For General Field Application. Features rugged housing with 2m or 10m cables. Waterproof. Comes with replaceable DO tip 5401.

9552-20D / 9552-50D DO Electrode

For General Field Application. Features rugged housing with 2m or 5m cables. Waterproof. Comes with replaceable DO tip 5402.

Diagram: Illustrates the measurement part of the DO sensor, showing the light source, oxygen response film, photodetector, and reference components.

Submersible Type

3551-10D Conductivity Cell

For Low Conductivity Water (e.g., deionized, distilled). Cell Material: Pt-Pt black / Glass.

3552-10D Conductivity Cell

For General Application. Cell Material: Pt-Pt black / Glass.

3553-10D Conductivity Cell

For High Conductivity Water. Cell Material: Pt-Pt black / Glass.

9371-10D Conductivity Cell

For Low Conductivity Water and Ultra-Pure Water. Cell Material: Stainless Steel.

9382-10D Conductivity Cell

For General Application. Cell Material: Ti-Pt black / Plastic. Waterproof.

Flow Type

9383-10D Conductivity Cell

For General Application. Cell Material: Ti-Pt black / Plastic. Waterproof.

3561-10D Conductivity Cell

For Low Conductivity Water (e.g., Deionized, Distilled). Cell Material: Pt-Pt black / Glass.

3562-10D Conductivity Cell

For General Application. Cell Material: Pt-Pt black / Glass.

3573-10C Conductivity Cell

For High Conductivity Water. Cell Material: Pt-Pt black / Glass.

3574-10C Conductivity Cell

For Small Volume Sample (e.g., Column Chromatography). Cell Material: Pt-Pt black / Glass.

Ammonia (NH3) Electrode

5002S-10C Ammonia (NH3) Electrode

Applications: Agriculture, Soil, Power station water, Fish tanks, Sea water, Waste water, Plating baths, Air/stack gases, Biological cultures.

Calcium Ion (Ca2+) Electrode

6583S-10C Calcium Ion (Ca2+) Electrode

Applications: Agriculture/plant tissue, Soil, Water softening systems, Boiler feed water, Drinking/mineral water, Biological cultures, Dental/clinical analysis, Dairy/food/beverages.

Chloride Ion (Cl-) Electrode

6560S-10C Chloride Ion (Cl-) Electrode

Applications: Agriculture, River/tap water, Plant tissue, Soils, Boiler feed water, Clinical analysis, Sweat, Urine, Cement, Plating baths, Dairy/food/beverage samples.

Fluoride Ion (F-) Electrode

6561S-10C Fluoride Ion (F-) Electrode

Applications: Dental/toothpaste/mouthwash, Drinking/seawater, Wastewater, Air/stack gases, Acids, Soils, Food, Biological fluids, Plant tissue, Coal, Carbonated beverages, Bone.

Nitrate Ion (NO3-) Electrode

6581S-10C Nitrate Ion (NO3-) Electrode

Applications: Agriculture, River/Tap Water, Plant Tissue, Soils, Boiler Feed Water, Clinical Analysis, Sweat, Urine, Cement, Plating Baths, Dairy/Food/Beverages Samples.

Potassium Ion (K+) Electrode

6582S-10C Potassium Ion (K+) Electrode

Applications: Agriculture/Plant Tissue, Soils, Wastewater, River/Tap Water, Clinical Analysis, Saliva, Serum, Fertilizers, Soils, Wines, Dairy/Foods/Beverages.

pH SENSORS

These are maintenance-free, gel-filled pH sensors requiring no electrolyte refilling. They utilize KCl gel electrolyte, a double junction reference, and a porous sintered polyethylene junction. Features include a built-in temperature sensor, rugged polycarbonate body, and a replaceable pH sensor cartridge.

pH Sensor Head

pH Sensor Cartridge

DISSOLVED OXYGEN (DO) SENSORS

These optical DO sensors offer longer usable life and excellent performance. They are easy to handle, unaffected by sample flow velocity, and not sensitive to hydrogen sulfide. DO sensor cap replacement is recommended after 1-2 years. Features include a built-in temperature sensor and come with a replaceable DO sensor cap, air calibration bottle, and Stainless Steel DO Sensor Protective Guard.

Dissolved Oxygen Sensor

Dissolved Oxygen Sensor Cap

Diagram: Illustrates the measurement part of the DO sensor, showing the light source, oxygen response film, photodetector, and reference components.

CONDUCTIVITY SENSORS

These 2-cell and 4-cell conductivity sensors offer a wide range of measurements. The 2-cell type with a flow cell is designed for ultra-pure water applications, while the 4-cell type measures various samples from clean water to industrial wastewater. Features include a built-in temperature sensor, stainless steel 2-cell cartridge, and a durable epoxy/carbon body 4-cell cartridge. They also have replaceable conductivity sensor cartridges.

Conductivity Sensor Head

4-Cell Conductivity Sensor Cartridge

2-Cell Conductivity Sensor Cartridge

ORP SENSORS

These are maintenance-free, gel-filled ORP sensors requiring no electrolyte refilling. They feature a platinum tip attached to glass, a built-in temperature sensor, rugged polycarbonate body, and a replaceable ORP sensor cartridge.

ORP Sensor Head

ORP Sensor Cartridge

ION SENSORS

Compatible with ion cartridges and combination ion-selective electrodes. They accept maintenance-free ion sensor cartridges equipped with temperature sensors and require a 300-BNC sensor head adapter for combination electrodes.

Ion Sensor Head

Ion Sensor Cartridge

* Each ion sensor cartridge comes with 100 mg/L & 1000 mg/L ion standard solutions (50 ml each), ionic strength adjustor (50 ml), syringe, and manual.

Diagram: Shows WQ-300 Ion Sensor Cartridge Packaging, including sensor cartridges, syringe, and standard solutions.

Diagram: Displays dimensions of various WQ-300 components like sensor heads, cartridges, and DO parts.

ORP Standard Solution & Powders

• ORP Standard Solution 225 mV at 25°C (500 ml)
• ORP Powder 89 mV at 25°C (10 sachets/pack)
• ORP Powder 258 mV at 25°C (10 sachets/pack)

pH Buffers

• NIST pH Buffers Kit
• USA pH Buffers Kit
• pH 1.68 Buffer
• pH 4.01 Buffer
• pH 6.86 Buffer
• pH 7.00 Buffer
• pH 9.18 Buffer
• pH 10.01 Buffer
• pH 12.46 Buffer

Conductivity Standards

• Conductivity Standards Kit
• 84µS/cm Conductivity Standard
• 1413µS/cm Conductivity Standard
• 12.88mS/cm Conductivity Standard
• 111.8mS/cm Conductivity Standard

pH/ORP Electrode Filling Solutions

• 3.33M KCl, 250 ml (Made in Singapore)
• 3.33M KCl, 250 ml (Made in Japan)

pH Electrode Cleaning Solutions

• Cleaning solution for removing inorganic sample residues (50 ml x 2 pcs)
• Cleaning solution for removing inorganic and organic sample residues (Solution A: 30 ml & Solution B: 100 ml)
• Cleaning solution for removing proteins (400 ml)

Ion Strength Adjustors

• Ammonia Ionic Strength Adjustor (500 ml)
• Calcium Ionic Strength Adjustor (500 ml)
• Chloride Ionic Strength Adjustor (500 ml)
• Fluoride Ionic Strength Adjustor (500 ml)
• Nitrate Ionic Strength Adjustor (500 ml)
• Potassium Ionic Strength Adjustor (500 ml)
• Sodium Ionic Strength Adjustor (500 ml)

Ion Standard Solutions

• 1000 mg/L Ammonium Ion Standard Solution (500 ml)
• 100 mg/L Ammonium Ion Standard Solution (500 ml)
• 1000 mg/L Calcium Ion Standard Solution (500 ml)
• 100 mg/L Calcium Ion Standard Solution (500 ml)
• 1000 mg/L Chloride Ion Standard Solution (500 ml)
• 100 mg/L Chloride Ion Standard Solution (500 ml)
• 1000 mg/L Fluoride Ion Standard Solution (500 ml)
• 100 mg/L Fluoride Ion Standard Solution (500 ml)
• 1000 mg/L Nitrate Ion Standard Solution (500 ml)
• 100 mg/L Nitrate Ion Standard Solution (500 ml)
• 1000 mg/L Potassium Ion Standard Solution (500 ml)
• 100 mg/L Potassium Ion Standard Solution (500 ml)
• 100 mg/L Sodium Ion Standard Solution (500 ml)
• 1000 mg/L Sodium Ion Standard Solution (500 ml)

Ion Selective Electrode Filling Solutions

• Ammonia Electrode Filling Solution (500 ml)
• Calcium Electrode Filling Solution (500 ml)
• Chloride Electrode Filling Solution (500 ml)
• Fluoride Electrode Filling Solution (500 ml)
• Nitrate Electrode Filling Solution (500 ml)
• Potassium Electrode Filling Solution (500 ml)

Accessories

• Integrated Electrode Stand (Height: 383 mm) for 2000 Series
• Integrated Electrode Stand (Height: 338 mm) for 1000 Series
• Adjustable, free-standing electrode stand (Height: 384 mm)
• Long, free-standing electrode stand (Height: 450-650 mm)
• Arm for electrode stand FA-70A, FA-70S & FA-70L
• Electrode holders, 2 pcs/pack
• Electrode protection caps, 5 pcs/pack
• Electrode protection cap for long electrode
• Clear pH sensor tip guard (for plastic pH electrodes)
• Black pH sensor tip guard (for 200 series, 300 series)
• Ammonia Ion Electrode Solutions
• Nitrate Ion Electrode Solutions
• pH/ORP Electrode Filling Solutions
• Calcium Ion Electrode Solutions
• Chloride Ion Electrode Solutions
• Fluoride Ion Electrode Solutions
• Potassium Ion Electrode Solutions
• Stirrer set for 9521-10D
• Electrode adapter
• 300-BNC Sensor head adapter
• Glass flow cell
• 300-EXT-10 10 m sensor head extension cable