Formaldehyde from Environment

Qu, Mei-Hua; Lü, Jing; He, Rong

doi:10.1007/978-94-024-1177-5_1

Cited by 8 publications

(13 citation statements)

References 99 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FA is exposed to human inhalation from a variety of environments [ 20 – 22 ]. In 2010, the World Health Organization (WHO) established an indoor air quality guideline for exposure to FA of 0.1 mg/m 3 (0.08 ppm) for all 30 min periods at lifelong exposure [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Development of a Simple and Powerful Analytical Method for Formaldehyde Detection and Quantitation in Blood Samples

Kim

Park

2020

Journal of Analytical Methods in Chemistry

View full text Add to dashboard Cite

Human beings are easily exposed to formaldehyde (FA) in a living environment. Entry of FA into the human body can have adverse effects on human health, depending on the FA concentration. Thus, a quantitative analysis of FA in blood is necessary in order to estimate its effect on the human body. In this study, a simple and rapid analytical method for the quantitation of FA in blood was developed. The total analysis time, including the pretreatment procedure, was less than 20 min. To ensure a stable analysis, blood samples were stabilized using tripotassium ethylenediaminetetraacetic acid solution, and FA was selectively derivatized using 2,4-dinitrophenylhydrazine as pretreatment procedures. The pretreated samples were analyzed using a high-performance liquid chromatography-UV system, which is the most common choice for analyzing small-molecule aldehydes like formaldehyde. Verification of the pretreatment methods (stabilization and derivatization) using FA standards confirmed that the pretreatment methods are highly reliable in the calibration range 0.012–5.761 ng μL–1 (slope = 684,898, R2 = 0.9998, and limit of detection = 0.251 pg·μL–1). Analysis of FA in the blood samples of a Yucatan minipig using the new method revealed an average FA concentration of 1.98 ± 0.34 ng μL–1 (n = 3). Blood samples spiked with FA standards were analyzed, and the FA concentrations were found to be similar to the theoretical concentrations (2.16 ± 0.81% difference). The method reported herein can quantitatively analyze FA in blood at a sub-nanogram level within a short period of time and is validated for application in blood analysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of a Simple and Powerful Analytical Method for Formaldehyde Detection and Quantitation in Blood Samples

Kim

Park

2020

Journal of Analytical Methods in Chemistry

View full text Add to dashboard Cite

show abstract

“…Formaldehyde (HCHO), which can be continuously emitted from extensively used construction and decoration materials, is regarded as one of the primary air pollutants in the human environment . Inhalation exposure to HCHO can result in respiratory symptoms and eye, nose and throat irritation.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous catalytic elimination of formaldehyde and ozone over one‐dimensional rod‐like manganese dioxide at ambient temperature

Zhang

Shi

Fang

et al. 2019

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: Formaldehyde (HCHO) and ozone (O 3 ) are seriously hazardous materials to human health, especially in the indoor environment, and need to be inhibited. Manganese dioxide (MnO 2 ) catalysts have been extensively studied in the field of environmental pollution owing to their various morphologies and crystal structures. In this study, one-dimensional rod-like MnO 2 catalysts were prepared by a hydrothermal method. The crystal form and other factors affecting the activity were explored through an activity test and various characterization methods. The decomposition process of HCHO and O 3 on the most active catalyst was analyzed by in situ diffuse reflection infrared Fourier transform spectroscopy (DRIFTS). RESULTS: -MnO 2 displayed the best catalytic performance and achieved 90% HCHO conversion, 100% carbon dioxide (CO 2 ) yield and 100% O 3 decomposition under different experimental conditions. The characterization results illustrated that the crystal phase of -MnO 2 has a suitable tunnel structure for HCHO adsorption, also leading to greater mobility of adsorbed oxygen species, abundant oxygen vacancies and active surface oxygen species, which could be the reason for the superior catalytic performance of -MnO 2 . Formate and dioxymethylene (DOM) species were identified as the dominant intermediates by in situ DRIFTS. The surface hydroxyl (OH) group was confirmed to play an essential role in the complete oxidation of carbonaceous intermediates into harmless CO 2 and water (H 2 O). CONCLUSION: -MnO 2 exhibited the best catalytic performance among the as-prepared samples and can efficiently eliminate HCHO and O 3 in the environment. Activity testAs mentioned, O 3 decomposition is the rate-determining step for promoting the catalytic oxidation of volatile organic compounds (VOCs). Previous studies 49,50 indicate a typical three-step reaction process for O 3 decomposition, as follows:

show abstract

“…Endogenous formaldehyde is produced via different pathways apart from methanol metabolism [16,33,34]. The exogenous sources of formaldehyde typically include respiration and food [[35], [36], [37]]. However, whether exogenous reduced sugar can produce formaldehyde has not been determined.…”

Section: Introductionmentioning

confidence: 99%

Formaldehyde produced from d-ribose under neutral and alkaline conditions

et al. 2019

Self Cite

View full text Add to dashboard Cite

Highlights d -ribose can produce formaldehyde under neutral and alkaline conditions in vitro. Administration of d -ribose induces an increase of formaldehyde in the brain of mice. Formaldehyde in urine and serum should be monitored for a person especially an elderly individual to take d -ribose.

show abstract

Formaldehyde from Environment

Cited by 8 publications

References 99 publications

Development of a Simple and Powerful Analytical Method for Formaldehyde Detection and Quantitation in Blood Samples

Development of a Simple and Powerful Analytical Method for Formaldehyde Detection and Quantitation in Blood Samples

Simultaneous catalytic elimination of formaldehyde and ozone over one‐dimensional rod‐like manganese dioxide at ambient temperature

Formaldehyde produced from d-ribose under neutral and alkaline conditions

Contact Info

Product

Resources

About