Comparison of sensitive methods for the measurement of inorganic arsenic in apple juice: Photoionization (PID) and ICP-MS

This will be presented in the Analytical Methods subsection of the two day Arsenic Contamination in Food and Water Symposium at the American Chemical Society Spring National Meeting in New Orleans April 10 and April 11, 2013 on the AGFD Track. 

299 - Comparison of sensitive methods for the measurement of inorganic arsenic in apple juice: Photoionization (PID) and ICP-MS

Authors: Jack Driscoll¹,  Jennifer Maclachlan¹,  (1) PID Analyzers, LLC, Sandwich, MA 02563, United States

Link to product literature

In January of 2012, Consumer Reports found 10% of apple juice samples tested from five brands had total arsenic levels above the drinking water standard of 10 parts per billion. Most of that arsenic was inorganic arsenic, a known carcinogen. American apple juice is made from apple concentrate, a majority of which is imported from China. Inorganic Arsenic has been detected as AsH₃following reduction via AA or ICP MS. The cost of these types of spectrometers is in the $60-200K price range. Many labs would have to choose the older colorimetric methods but we have developed and modified the hydride generation-PID method for arsenic in water analysis at ppb levels (1) to work with food and juice. The system cost is a fraction of the $200K spectrometer price. We will describe the modifications of the new method for arsenic in apple juice as well as the comparison results with ICP-MS. (1) Driscoll, JN and GA Cutter, “Total and Speciated Arsenic Compounds in Water by Photoionization and Gas Chromatography/PID”in "Toxic Trace Metal Remobilization & Remediation - A Geochemical Body of Work" to be published by the ACS (2013)                           

Thursday, April 11, 2013 08:35 AM
Arsenic Contamination of Food and Water (08:30 AM - 12:20 PM)
Location: DoubleTree by Hilton New Orleans
Room: Madewood B

See document below for complete listing of presenters at Arsenic Contamination in Food and Water at #ACSNOLA

  Speakers & Affiliations for Arsenic Contamination in Food and Water two day event at #ACSNOLA by Jennifer Maclachlan

Arsenic Contamination in Food and Water~a two day symposium

  Arsenic contamination in food and water~featured thematic program track at #ACSNOLA 

  Speakers and Affiliations for Arsenic Contamination in Food Water two day event at #ACSNOLA 

  Arsenic Contamination in Food and Water~An AGRO Division co-sponsored program

A Sensitive Method for the Measurement of Inorganic Arsenic in Apple Juice: Hydride Generation (HG)/Photoionization (PID)

Accepted for presentation in the Sunday Poster Session at AAAS Boston February 17, 2013 at the Hynes Convention Center Boston, MA

Title:

 A Sensitive Method for the Measurement of Inorganic Arsenic in Apple Juice: Hydride Generation (HG)/Photoionization (PID)

Subject Category:

 Environment and Ecology

Session Selection:

 AAAS General Poster Session

Slot:

 : Sunday, February 17, 2013: 1:00 PM-5:00 PM

 Authors: Jack N. Driscoll¹ , PID Analyzers, LLC, 2 Washington Circle, #4, Sandwich, Massachusetts, US, 02563, United States

2. Jennifer L Maclachlan¹ , PID Analyzers, LLC, 2 Washington Circle, #4, Sandwich, Massachusetts, US, 02563, United States 

---

Abstract Body: 

In January of 2012, Consumer Reports found 10% of apple juice samples tested from five brands had total arsenic levels above the drinking water standard of 10 parts per billion. Most of that arsenic was inorganic arsenic, a known carcinogen. American apple juice is made from apple concentrate, a majority of which is imported from China. Inorganic Arsenic has been detected as AsH₃ following hydride reduction and AA or ICP MS. The cost of these types of spectrometers is in the $60-200K price range.

Many labs would have to choose the older colorimetric methods but we have developed and modified the a simple and sensitive hydride generation-PID method for arsenic in water analysis at ppb levels (1) to work with food and juice. The system cost is a fraction of the $60K spectrometer price.

We will describe the modifications of a new method for arsenic in apple juice.

1.       Driscoll, JN and GA Cutter, “Total and Speciated Arsenic Compounds in Water by Photoionization and Gas Chromatography/PID”in "Toxic Trace Metal Remobilization & Remediation - A Geochemical Body of Work" to be published by the ACS (2012)

GC-PID method for the measurement of arsenic in food and juice

Coming to New Orleans, LA in April 2013: a two day symposium on Arsenic Contamination in Food and Water

Click here for slideshow

244th American Chemical Society National Meeting

Philadelphia, PA 

Monday Evening SCI-MIX 8/20/12  & Wednesday Evening 8/22/12

Document ID: 15727

Jack Driscoll and Greg Cutter 2011 aboard the RV/Knorr

Program Area: ENVR: Division of Environmental Chemistry   

Symposium Title: (ENVR008p) General Posters

Program Area: ENVR: Division of Environmental Chemistry

Symposium Title: (ENVR009) Environmental Chemistry Sci-Mix Session

INSTITUTIONS

1. PID Analyzers, LLC, Sandwich, Massachusetts, US, 02563, United States

2. Old Dominion University, Norfolk, VA, United States

---

Jennifer Maclachlan, Jack Driscoll, Greg and Carey Cutter

AUTHORS

1. Jack N. Driscoll¹ , PID Analyzers, LLC, 2 Washington Circle, #4, Sandwich, Massachusetts, US, 02563, United States , 6176994307, United States, pidguy@aol.com

2. Jennifer L Maclachlan¹ , PID Analyzers, LLC, 2 Washington Circle, #4, Sandwich, Massachusetts, US, 02563, United States , 6176994307, United States, pidgirl@gmail.com

3. Gregory Cutter² , Old Dominion University, Dept of Ocean, Earth and Atmospheric Sciences, 5115 Hampton Boulevard, Norfolk, VA, 23529, United States , 757-683-4929, gcutter@odu.edu

4. James Maclachlan, PID Analyzers, LLC, 2 Washington Circle, #4, Sandwich, Massachusetts, US, 02563, United States , 6176994307, United States, sales@hnu.com

---

Title: Photoionization (PID) and GC-PID method for the measurement of arsenic in food and juice  

Abstract Body: Numerous methods have been described in the literature for the determination of arsenic both in water and in particulate matrices. Many of these methods essentially employ the same principles, but apply different reagents, concentrations or instrumentation. The most popular techniques for arsenic analyses include hydride generation and AA, ICP-OES or ICP-MS. Although many water labs have these types of spectrometers already, many labs do not. The cost of these types of spectrometers is in the $100-200K price range.

Many labs would have to choose the older colorimetric methods but we have developed and modified the PID and GC-PID methods for arsenic in water analysis at ppb levels (1) to work with food and juice. The system cost is a fraction of the $100K spectrometer price.

Photoionization (2) & GC-PID (3) have been used to measure low ppb levels of As (3), As (5), total arsenic and organo arsenic compounds (GC-PID) in water. The latter method by Cutter (2) is one of the most sensitive methods available for arsenic in water with a detection limit of 0.075 ug/L and the ability to separate arsine, organoarsenic compounds and other organo metallic hydrides.

We will describe the modifications of the new method for arsenic in food and juice as well as the interferences, accuracy and precision for those samples.

1. Driscoll, JN and GA Cutter, “Total and Speciated Arsenic Compounds in Water by Photoionization and Gas Chromatography/PID”in "Toxic Trace Metal Remobilization & Remediation - A Geochemical Body of Work" to be published by the ACS (2012)
2. Driscoll JN, D. Lewis, R. Keip, J . Ann, H. Hu, , , DETERMINATION OF ARSENIC IN WATER AT LOW PPB LEVELS,Pittsburgh Conference on Anal. Chem…, Paper # 2350-7, March 2006
3. Cutter, G.A. and L.S. Cutter.. The biogeochemistry of arsenic and antimony in the North Pacific Ocean. Geochem. Geophys. Geosystems (G³), 7, Q05M08, doi:10,1159, 2006

Check out @pidgirl's *Arsenic* Board on Pinterest here