TruLab, MultiLab and ISEs for Laboratory Measurements | YSI

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The YSI TruLab instruments for pH, ORP (mV), Ion Selective Electrodes (ISEs) and temperature includes 5 separate instruments for routine environmental laboratory measurements. YSI MultiLab includes instruments that allow the measurement of BOD, pH, ORP, conductivity and ISEs. Intelligent Digital Sensors provide accurate, reliable measurements. In addition, YSI offers 15 ISE electrodes. Learn more in this overview from a recent webinar we presented. Contact info@ysi.com with any questions.

Transcript of 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 ccushman@ysi.com

Laura St. Pierre, Senior Product Manager lstpierre@ysi.com

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)

YSI TruLab Instruments

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)

YSI TruLab Instruments

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

TruLine, IoLine, and ScienceLine Electrodes

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.

TruLine, IoLine, and ScienceLine Electrodes

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+)

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

• 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+)

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

• 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-)

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

• 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

Thank you for attending 1-937-767-7241

ccushman@ysi.com

lstpierre@ysi.com