The portable device of claim 55, wherein the computer system includes software and/or hardware for comparing a spectrum obtained from the gaseous sample by the spectrometer to known spectra included in a spectral library stored in the computer system. 59. The portable device of claim 55, wherein the canister, the gas cell, the spectrometer, theCited by: 21

The Portable Water Purification System is designed to address the difficulty of accessing clean and safe water, especially for flood disaster victims and this is a challenge to getEstimated Reading Time: 6 mins

In this work, surface-enhanced Raman scattering (SERS) spectrum was used to build a rapid analytical method for pesticide residues in fruits. QuEChERS (quick, easy, cheap, effective, rugged and safe) method was modified by multi-walled carbon nanotubes as clean-up sorbents. Overall recoveries of selected pesticide phosmet ranged from 77 to 97% in apples at three spiking levels (0.5, 1 and 2 mg

The developed portable μ-SPE method provided good linearity in the concentration range of 0.1–100 μg L−1 for fluorene, anthracene, fluoranthene and pyrene, and 1–100 μg L−1 for benzo[a

• Portable electronic leak detection. An electronic probe is used to detect and pinpoint leaking refrigerant as it escapes the system. These devices are typically small handheld units that emit and audible signal when refrigerant is detected. Good electronic detectors can typically detect leaks as small as 3 grams per year. Electronic detectors

2020-10-1The detection was completed within 5 min, and the sensitivity was 10 −7 mol/L, which is very suitable for the detection of illegal addition of aquatic products . The accuracy of detection and qualitative identification of adulteration of meat, seafood, and their products has reached a high level.

Rising concerns regarding global impacts of microplastic pollution on marine wildlife mandates a reliable and comparable detection protocol (Nelms et al., 2016). Here, alongside investigation of macroplastic ingestion (5 mm), we develop a methodology to explore whether synthetic particles (<5 mm) could be isolated from marine turtle ingesta.

2018-1-1The CL-CE system used in glyphosate (GLY) herbicide and its degradation product, aminomethyl-phosphonic acid (AMPA) detection from water and guava samples as reported by Hsu and Whang (2009). Along with SPE extraction method, the RSD values obtained were of 7.7% for GLY and 5.4% for AMPA, respectively with R 2 value of 0.999.

Reasons for work stoppages during in‐field operations may include blockages of stems and plant material flowing into the headers feed rolls, activation of the automatic metal detection system which protects the chipping blades, maintenance that requires immediate attention to prevent damage to the harvester, waiting for collection vehicles

The addition of N in a nutrient‐deprived system can accelerate the decomposition of native organic matter, leading to a decrease in SOC and N (Chen et al., 2014; Qiu et al., 2016). The short‐term change in soil organic matter turnover caused by the addition of N to the nutrient‐deprived soils is called priming.