Rapid determination of 210Po in water samples

2013 ◽  
Vol 298 (3) ◽  
pp. 1977-1989 ◽  
Author(s):  
Sherrod L. Maxwell ◽  
Brian K. Culligan ◽  
Jay B. Hutchison ◽  
Robin C. Utsey ◽  
Daniel R. McAlister
Keyword(s):  
Water Samples ◽  
Rapid Determination

Effervescence-assisted dispersive liquid–liquid microextraction based on the solidification of a floating ionic liquid with a special collection method for the rapid determination of benzoylurea insecticides in water samples

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 95283-95291 ◽  
Author(s):  
Lu Hu ◽  
Heng Qian ◽  
Xiaoling Yang ◽  
Songqing Li ◽  
Sanbing Zhang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Water Samples ◽  
Rapid Determination ◽  
Collection Method ◽  
Special Collection ◽  
Benzoylurea Insecticides ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

Dispersion liquid–liquid microextraction based on the solidification of a floating ionic liquid.

scholarly journals MOFs-Derived Nano-CuO Modified Electrode as a Sensor for Determination of Hydrazine Hydrate in Aqueous Medium

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 140 ◽  
Author(s):  
Yaqi Lu ◽  
Dan Wu ◽  
Ziyin Li ◽  
Quanjie Lin ◽  
Xiuling Ma ◽  
...  
Keyword(s):  
Detection Limit ◽  
Hydrazine Hydrate ◽  
Aqueous Medium ◽  
Water Samples ◽  
Electrocatalytic Activity ◽  
Rapid Determination ◽  
High Toxicity ◽  
Sem Images ◽  
Nano Structure

It very important to be able to efficiently detect hydrazine hydrate in an aqueous medium due to its high toxicity. Here, we have proposed a new idea: to construct a sensor for the rapid determination of hydrazine hydrate based on the nano-CuO derived by controlled pyrolysis of HKUST-1 [Cu3(BTC)2(H2O)3]. The as-prepared CuO at 400 °C possesses a uniform appearance with nano-structure via SEM images, and the nano-CuO-400 has exhibited excellent electrocatalytic activity towards hydrazine oxidation. Amperometric i-t curves shows the peak current as linearly proportional to the hydrazine concentration within 1.98–169.3 μmol L−1 and 232–2096 μmol L−1 with the detection limit of 2.55 × 10−8 mol L−1 and 7.01 × 10−8 mol L−1, respectively. Moreover, the sensor constructed in the experiment shows good selectivities, and it is feasible to determining actual water samples.

scholarly journals Rapid determination of iodine content in drinking water by isopropyl sensitization and inductively coupled plasma mass spectrometry (ICP-MS)

2021 ◽  
Vol 245 ◽  
pp. 03004
Author(s):  
Yanxia Zeng ◽  
Xiashi Zhu
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Rapid Determination ◽  
Internal Standard ◽  
Iodine Content ◽  
Ammonia Solution ◽  
Standard Curve ◽  
Icp Ms

A subject for the rapid determination of iodine content in drinking water by isopropyl sensitization and ICP-MS was established. The samples were dissolved in 1% ammonia solution, 127I was selected as the mass number to be measured and 159Tb as an internal standard. At the same time, 4% (V/V) isopropanol was used to enhance aerosol gasification efficiency, 2% NH3·H2O was used to effectively eliminate memory effects of iodine by cleaning sample for 180 seconds. The results show that, the detection limits of iodine in this method are 0.007 mg·kg-1 and it is superior to other literature. The standard curve has a good linear relationship and the recovery rates of testing rusults range are from 96.00% to 112.3%. The content of iodine in standard substance water samples was determined by ICP-MS method. The iodine content in water samples from seven drinking water sources in Lianyungang area was analyzed between 14~21 μg·L-1. It was in line with the allowable value of 10~300 μg·L-1 of the sanitary standard for drinking water, suggesting that the iodine content of drinking water resources in Lianyungang area was in a safe range.

Rapid Determination of Benzene Derivatives in Water Samples by Trace Volume Solvent DLLME prior to GC-FID

2012 ◽  
Vol 75 (9-10) ◽  
pp. 551-555 ◽  
Author(s):  
Chun Peng Diao ◽  
Chao Hai Wei ◽  
Chun Hua Feng
Keyword(s):  
Water Samples ◽  
Rapid Determination ◽  
Benzene Derivatives
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