TruLab, MultiLab and ISEs for Laboratory Measurements | YSI

Overview of New YSI Laboratory Products

Trulab, MultiLab, Ion Selective Electrodes (ISEs)

August 12, 2014

Chris Cushman, Assistant Product Manager [email protected]

Laura St. Pierre, Senior Product Manager [email protected]

Outline

•TruLab

-Analog pH/mV(ORP)/ISE benchtop instruments

•MultiLab

-Digital multiparameter benchtop instruments

•New TruLine ISEs

TruLab: Analog pH/mV(ORP)/ISE Benchtop Instruments with new suite of pH electrodes

YSI TruLab Product Line

• Analog line of pH, mV and ISE instruments – released March 2014

• Specialty line of pH and ISE probes for various applications

• Positioned to compete against Thermo and Hanna

• Complimentary to MultiLab products

YSI TruLab Instruments

TruLab pH 1110 • Single channel analog instrument • pH, mV(ORP), Temp • No memory • Segmented display • 3 stored buffer sets

TruLab pH 1310 • Single channel analog instrument • pH, mV(ORP), Temp • Memory (500 manual, 5000 auto) • USB output; data importer software • 22 stored pH buffer sets • Backlit graphic display • Printer option (1310P)


TruLab pH/ISE 1320 • Dual channel analog instrument • pH, mV(ORP), Temp, ISEs • Connect 2 ISEs simultaneously • Direct ion concentration readout for:

Ag+, Br-, Ca2+, Cd2+, Cl-, Cu2+, CN-, F-, I-, K+, Na+, NO3-, Pb2+, S2-, NH3, NH4

+, CO2 • Memory (500 manual, 5000 auto) • USB output; data importer software • 22 stored pH buffer sets • Backlit graphic display • Printer option (1320P)


Features of all models:

• 3 year warranty

• BNC connectors

• Calibration timer

• AutoRead for repeatability

• Electrode stand included

• Universal power supply

• USB cable and PC data importer included when applicable (1310/20)

• Wide range of pH electrode options for specialized applications

• Stored buffer sets (3 for 1110, 22 for 1310/20)

• Battery or AC operation; USB power for 1310 and 1320

TruLine, IoLine, and ScienceLine Electrodes

TruLine: 6 single junction pH electrodes and 2 ORP electrodes

• Glass or epoxy body, refillable, and temperature/non-temp

• 1 spear tip pH electrode for penetrating solids; 1 flat tip for surfaces

• Cover about 80% of pH lab applications

• Can be used with variety of meters (BNC)

• Fast response

• Refillable electrodes offer long, usable life


IoLine: 2 triple junction glass electrodes with iodine/iodide reference • No contamination of sample with metal ions (Tris buffers) • 3-chamber reference system allows for stability in all media and at

changing temps; used in variety of applications • 1 micro version for small sample size

ScienceLine: 3 double junction electrodes with high electrolyte outflow • Unique applications requiring particular junction • Ground joint: highest outflow, best for solutions with a lot of solids,

useful for solutions with low ions • Platinum: high outflow to prevent clogging, but not as high as ground

joint; micro size available • Fast response; double junction reduces the chances that the

reference will touch the sample, avoiding possible contamination.


Product line features:

• German engineered/manufactured

• Variety of electrode designs to meet a large range of applications

• 1 meter cable

• Longevity and fast response

• Competitive pricing

• Temperature included with all IoLine and ScienceLine, optional for TruLine

Measurement reminder: • Refilling opening must be OPEN during calibration and measurement

MultiLab: Digital Multiparameter Benchtop Instruments

• 4 instruments: - 4010-1(P), single channel - 4010-2, dual channel - 4010-3, triple channel

• All instruments include: - 3-year warranty! - MultiLab importer PC software - universal power supply - USB cable - electrode stand

• All instruments work with BOD Analyst Pro

YSI MultiLab Product Line

YSI MultiLab Instruments

MultiLab 4010-1

• Single channel digital instrument

• pH, mV(ORP), Temp, DO/BOD, cond. • Data storage -500 data sets in manual mode

-5,000 data sets in automatic logging mode

-Send data to PC (ASCII and .CSV); import directly into Excel®

• Large, easy to read backlit graphic display

YSI MultiLab Instruments

MultiLab 4010-2/3

• Two or three channel digital instrument

• pH, mV(ORP), Temp, DO/BOD, cond.

• ISE option with analog adapter -Covers one digital input

• Data storage -500 data sets in manual mode

-10,000 data sets in automatic logging mode

-Send data to PC, USB stick, or USB printer

• Large, easy to read color display

• Antibacterial keypad

•Digital sensor recognition, processing and data transfer

•Plug-and-play connectivity; probe auto-recognized

•Sensors store unique ID with serial number and calibration status

•Monitors sensor performance and calibration to notify when it is time to change sensor cap or refill/replace pH sensor

•Includes pH, ORP, conductivity and optical based self-stirring BOD

YSI MultiLab Intelligent Digital Sensors (IDS)

Ion Selective Electrodes: YSI TruLine ISEs

Measurement Basics: Nernst Equation

• ISEs measure ion activity (i.e. “effective concentration”) -Ion activity < actual ion concentration due to interaction of ions in solution, reduces ions available to react

• ISEs are designed to measure specific ions, but other ions can interfere

-Adding ionic strength adjustor acts to minimize/mask effect of interfering ions

• pH electrode is a Hydrogen ISE

• ISE output is in mV; follows Nernst Equation

• Slope of electrode: 2.303 ∗ 𝑅𝑅𝑅𝑅𝑛𝑛𝑛𝑛

-Divalent (e.g. Ca2+) ~ 29 mV/decade (typical 26-29)

-Must have decade (i.e. order of magnitude) difference in calibration standards; can “fill-in” between standards if many used

𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 Ca2+ = 2.303 ∗ 8.314 𝐽𝐽𝐾𝐾 𝑚𝑚𝑆𝑆𝑆𝑆 ∗ 298.15 𝐾𝐾 ∗

12 ∗

𝑚𝑚𝑆𝑆𝑆𝑆9.649 ∗ 104 𝐶𝐶 = 2.958 ∗ 10−2 𝐽𝐽 𝐶𝐶−1 = 29.58 𝑚𝑚𝑚𝑚

ISE Electrode Types

Half cell ISEs:

• Contain only the ion sensor (half cell); separate reference must be used

-Both have ion exchange with the sample

-mV output determined by difference in potential b/w the sensing half cell and the reference

Combination ISEs:

• Contain the sensing electrode and reference electrode in the same body

• Much easier to use; preferred by most customers

• YSI TruLine electrodes

Measurement Methods

Direct measurement:

• Simple and most commonly used ISE method

• Measure mV output in samples and determine concentration based on calibration (i.e. just as is done with pH)

Incremental methods:

• Standard addition, standard subtraction, sample addition, sample subtraction

• Methods of spiking the sample

• Sample ion concentration calculated from change in potential

• YSI TruLab 1320 and MultiLab 4010-2/3 have all incremental methods preprogrammed

Currently Available ISEs: YSI and Competition

YSI Brand A Brand B Brand C

NH3

NH4+

Br-

Cd2+

Ca2+

Cl-

Cu2+

CN-

F-

I-

Pb2+

NO3-

K+

Ag+/S2-

Na+

• 16 parameters

• All electrodes are refillable and include double-junction reference

• 4 sensor technologies

-Gas sensing, polymer/PVC membrane, solid state, glass sensor

• Included with electrode purchase: -Unfilled electrode

-1 replacement sensor module for polymer/PVC type electrodes due to shorter shelf life

-Reference fill solution, ionic strength adjustor (ISA), and small bottle of standard

• 9-12 months warranty depending on ISE

• Made in the U.S.A.

YSI TruLine ISE Electrodes

• Technology: Gas-sensing • Features: Replaceable Membrane Modules, pH sensor inside

• Range: 0.02-17,000 mg/L • Slope: 54-59 mv/decade • pH range: Must be 11 or higher to make NH3 gaseous. ISA has blue color at this pH

• Interferences: few, volatile amines • Applications/Notes: Popular for wastewater, aquaculture, agriculture, industrial. pH shift caused by ammonia gas is correlated to concentration

Ammonia (NH3)

• Technology: Polymer/PVC Membrane • Features: Refillable, Replaceable Sensor Modules

• Range: 0.02-1,800 mg/L • Slope: 54-59 mv/decade • pH range: 4-10 • Interferences: few, Na+, K+

• Applications/Notes: Popular for wastewater, environmental, industrial, food/beverage

Ammonium (NH4+)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.4-79,900 mg/L • Slope: 54-59 mv/decade • pH range: <12 • Interferences: I-, Cl-, CN-, NH3

-

• Applications/Notes: Pool & spa, industrial

Bromide (Br-)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.1-11,200 mg/L • Slope: 26-29 mv/decade • pH range: 2-8 • Interferences: Hg2+, Ag+, Cu2+, Pb2+

• Applications/Notes: Industrial, environmental

Cadmium (Cd2+)


• Range: 0.02-40,000 mg/L • Slope: 25-29 mv/decade • pH range: 2.5-11 • Interferences: Pb2+, Hg2+, Si2+, Mg2+, Cu2+, K+, Tris+, Na+, others

• Applications/Notes: Popular for Aquarium, industrial, food/beverage

Calcium (Ca2+)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 1.8-35,500 mg/L • Slope: 54-59 mv/decade • pH range: 2-12 • Interferences: CN-, Br-, I-, OH-, S2-, NH3

• Applications/Notes: Very popular for industrial, wastewater, drinking water, food/beverage, environmental. This sensor is slightly photosensitive – store in dark place when not in use.

Chloride (Cl-)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.6-6,400 mg/L • Slope: 26-29 mv/decade • pH range: 2-6 • Interferences: Hg2+, Ag+, Fe2+, Br-, Cl- • Applications/Notes: Industrial, environmental. Also known as Cupric ISE.

Copper (Cu2+)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.2-260 mg/L • Slope: 54-59 mv/decade • pH range: 10-14 • Interferences: I-, Br-, Cl-, S2- • Applications/Notes: Industrial, environmental. Standard solutions not included in electrode package (safety issue)

Cyanide (CN-)

• Technology: Solid State Crystal • Features: Refillable, non-replaceable sensor • Range: 0.02 mg/L - saturation • Slope: 54-59 mv/decade • pH range: 5-7 at low range, 11 at higher range • Interferences: OH- • Applications/Notes: Very popular for drinking water, industrial. Lanthanum fluoride crystal is the sensor.

Fluoride (F-)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.006-127,000 mg/L • Slope: 54-59 mv/decade • pH range: <14 • Interferences: CN-, Cl-, S2O3

2-, S2-, NH3 • Applications/Notes: Drinking water, industrial, food/beverage

Iodide (I-)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.02-20,700 mg/L • Slope: 26-30 mv/decade • pH range: 4-7 • Interferences: Hg2+, Ag+, Cu2+, Fe2+, Cd2+ • Applications/Notes: Industrial, environmental

Lead (Pb2+)


• Range: 0.4-62,000 mg/L • Slope: 54-59 mv/decade • pH range: 2.5-11 • Interferences: few, ClO4

-, ClO3-, I-, F-

• Applications/Notes: Very popular for environmental, industrial, agriculture, food/beverage

Nitrate (NO3-)


• Range: 0.04-39,000 mg/L • Slope: 54-59 mv/decade • pH range: 2-12 • Interferences: Cs+, NH4

+, Tl+, H+, Ag+,Tris+, Na+, Li+

• Applications/Notes: Popular for agriculture, food/beverage, environmental, industrial

Potassium (K+)

• Technology: Solid State • Features: Refillable, non-replaceable sensor • Range: 0.01-107,900 mg/L (Silver) 0.003-32,100 mg/L (Sulfide)

• Slope: 54-59 mv/decade (Silver) 26-29 mv/decade (Sulfide)

• pH range: 2-12 • Interferences: Hg2+ • Applications/Notes: Industrial, environmental, food/beverage. Sulfide does not come with standard solution (stability)

Silver/Sulfide (Ag+/S2-)

• Technology: Glass Sensor • Features: Refillable, non-replaceable sensor • Range: 0.1-23,000 mg/L • Slope: 54-59 mv/decade • pH range: >9 • Interferences: H+, K+ • Applications/Notes: Industrial, agriculture, power, food/beverage. Looks like a pH electrode!

Sodium (Na+)

TruLine ISE Tips

• Takes ~1-2 mL to fill electrode

• One order of magnitude (i.e. decade) difference between two standards; can include standards between

• Add ISA to both samples and standards to ensure similar ionic strength

• Short term (1-3 day) storage: place in low standard and fill the reference

• Long term: store dry (i.e. drain reference) and avoid sunlight

• Fill hole should be open during calibration and measurement, closed during storage

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