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SERVICES |
RULE 1176 |
AND RESOURCE |
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Laboratory Services Description
(Items 9, 10, 11 and 12)
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Methods: CARB 430, EPA0011, TO-11, TO-11A, TO-5 Detector: HPLC/UV The determination of aldehydes and ketones is of critical importance in a number of industrial, biomedical and ambient environmental applications. This class of compounds is best sampled using 2-4 dinitrophenylhydrazine reagent in aqueous acidic solutions or impregnated on C18 or silica gel cartridges (TO-5 or TO-11). |
Methods: TO-8 Detector: HPLC/UV Organic acids (i.e., acetic acid, formic acid, citric acid, etc.) are also analyzed using the HPLC/UV systems. These compounds are normally sampled in an alkaline impinger solution. Similarly, phenols and cresols sampled in sodium hydroxide are analyzed using the HPLC/UV system (TO-8). |
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Methods: NIOSH 7903, CARB 421 Detector: Ion Chromatograph/conductivity Inorganic acids (e.g., HCl, HNO3, H2SO4, HF, etc.) sampled in alkaline solutions are analyzed using an Ion Chromatograph equipped with a conductivity detector. This instrument is capable of detecting sub ug levels of these ions. |
Methods: TO-13, NIOSH 5506 Detector: HPLC/UV PAHs are sampled on sorbent (XAD, PUF) system and are analyzed using a Shimadzu 10A HPLC/UV system. Detection limits for PAHs are close to 0.1 ug/ml. |
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