Contact for this Instrument: 

Karol Confer

Laboratory Scientist

Email: 
kec1@psu.edu
Phone: 
814-863-0158
EESL Manager: 

Odette Mina

Managing Director of Energy and Environmental Sustainability Laboratories (EESL).

Email: 
oom5021@psu.edu
Phone: 
814-863-0002
Equipment full name: 
Mettler Toledo DL15 Potentiometric Titrator for Endpoint Titrations

Description: The Mettler is used to quantify the acid and base content (acidity and alkalinity) of a solution. 

Analytical Method: Our laboratory follows Standard Methods for the Examination of Water and Wasterwater, 23rd Edition. Acidity analysis (cold) and acidity analysis (hot) are completed following 2310B titration method. Alkalinity analysis is completed following 2320B method.

For samples submitted to the water quality laboratory for acidity/alkalinity analysis, our analysts also analyze and report turbidity of the submitted samples using the Hach Turbidimeter. The cost per sample includes acidity/turbidity or alkalinity/turbidity. Analysis requires filtration using a 0.45µm filter and all samples must be stored at 4ºC.

Sample submission: Water samples may be submitted to the water quality laboratory chemist for analysis.

Training: Student researchers and faculty who may be interested in training on how to operate the instrument and interpret the data, please contact the water quality laboratory to schedule training and time on the instrument. While the number of training hours may vary, depending on the student's knowledge and analytical skills, we require a minimum of three training hours prior to allowing the student to independently operate the instrument.

Internal Rate: 
Water Lab Staff Run Samples: $22.96/sample; filtration cost: $5.43/sample; Student Run Samples: $6.81/sample; filtration cost: $2.20/sample; Operator time (training): $17.56/hour.
External Academic Rate: 
Water Lab Staff Run Samples: $36.03/sample; filtration cost: $8.52/sample; Student Run Samples: $10.69/sample; filtration cost: $3.45/sample; Operator time (training): $27.55/hour
External Non-Academic Rate: 
Water Lab Staff Run Samples: $37.18/sample; filtration cost: $8.79/sample; Operator time: $28.43/hour.
Techniques: