Sample Preparation of PAHs | Sorbent-Based Methods

Sample Preparation of PAHs | Sorbent-Based Methods

Polycyclic aromatic hydrocarbons (PAHs) are widespread contaminants generated primarily during the incomplete combustion of organic materials (e.g. coal, oil, petrol, and wood). These organic compounds are mostly made of hydrogen and carbon in the form of two or more fused aromatic rings. PAHs have been proven to be harmful to human health and should be avoided.

Rivers and other flowing waters are mainly polluted by PAHs which may affect water life forms due to their cancerous, mutagenic and teratogenic effects, according to the Environmental Protection Agency (EPA), which is why they, along with the European Environment Agency, listed PAHs as priority pollutants. Concentrations of PAHs in surface water are directly linked to their bioaccumulation in the food chain. PAHs are highly lipid soluble compounds and hence quickly absorbed from the gastrointestinal tract of mammals, which are later distributed through the body with a tendency for localization in the fat tissue.

For the sake of the environment, analytical procedures have been developed in order to monitor the concentrations of PAHs in water, air, soil, agricultural products and almost everywhere in the environment. Each analytical procedure consists of several important steps – sampling, sample treatment, isolation of the target compounds, identification, quantification, and data handling. Operations carried out with samples before the instrumental analysis are considered to be a part of the sample preparation, which includes the required treatments in order to optimize the sample for further examination. The extraction process is often included as one of the necessary treatments in order to increase the precision and accuracy of the analytical method.

These days, sample preparation procedures tend to follow the ideology of the Green Analytical Chemistry (GAC), reducing or—in the best case—removing the potential harmfulness of analytical practices on operators and the environment. GAC is focused on developing instruments and methods that leave less hazardous waste behind and thus are environment-friendly and—more importantly—safer for practical use.

Last but not least, the cost of the analysis can sometimes stand in the way of conducting good-quality research, which is why scientists are working on developing methods that are both effective and less expensive. Having that in mind, the review paper published in our journal (CN: 1(1), 93-123) describes the sample preparation techniques suitable for the extraction of PAHs from water—and following the GAC principles—as well as the further examination of the sample.

Lazar Kulašević

PR Manager of "Chemia Naissensis"

This Post Has 8 Comments

  1. You could definitely see your skills in the work you write. The world hopes for more passionate writers like you who aren’t afraid to say how they believe. Always go after your heart.

  2. Magnificent goods from you, man. I have understand your stuff previous to and you are just extremely fantastic.
    I really like what you’ve acquired here, really like what
    you are saying and the way in which you say it.
    You make it enjoyable and you still care for to keep it sensible.
    I can’t wait to read much more from you. This is really a tremendous web site.

  3. Everyone loves what you guys are up too. This type of clever work and reporting!
    Keep up the awesome works guys I’ve incorporated you guys
    to my blogroll.

  4. As the admin of this web page is working, no uncertainty very soon it will be famous, due to its feature contents.

  5. Hurrah, that’s what I was seeking for, what a stuff!
    present here at this web site, thanks admin of this website.

  6. Hello there! I simply would like to offer you a huge thumbs up for your
    great info you have right here on this post. I am coming back
    to your blog for more soon.

  7. I think the admin of this website is truly working hard in support
    of his website, for the reason that here every data is quality based data.

Leave a Reply

Close Menu