Matches in SemOpenAlex for { <https://semopenalex.org/work/W2348344228> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W2348344228 endingPage "530" @default.
- W2348344228 startingPage "525" @default.
- W2348344228 abstract "The Near Infrared Spectroscopy (NIRS) of 55 natural water samples were collected by a PbS detector with 8 nm resolution at wavelengths from 400 nm to 2 500 nm in air background and three quartz sample cells in thickness of 1 mm, 2 mm and 4 mm respectively were used to investigate the effect of different optical path difference. The nitrogen concentrations were measured by the Chinese National Standard Method (NSM), and the value of TN is used as the standard. The calibration models of the NIRS were established with Stepwise Multiple Linear Regression (SMLR) and Partial Least-squares (PLS) to analyze the TN concentration. Experimental results show that the correlation coefficient of the calibration model is 0.97 when the sample cell is 1 mm, and the Root Mean Square Error of Cross Validation (RMSECV) is 0.490 mg/L. In order to validate the feasibility of the NIRS method for TN measurement of water, the results of the NIRS method and NSM method have been compared to each other by t-test. The experimental results demonstrate that there is no significant difference between the NIRS method and the NSM by t-test on the condition of the significance level greater than 0.05;The NIRS method is promising for detecting TN in waters and wastewaters. Moreover,because of the strong influence of the water absorbance, 1 mm thickness sample cell is more suitable for near infrared spectral analysis of TN." @default.
- W2348344228 created "2016-06-24" @default.
- W2348344228 creator A5014052918 @default.
- W2348344228 creator A5031239467 @default.
- W2348344228 creator A5031628401 @default.
- W2348344228 creator A5057145107 @default.
- W2348344228 date "2009-01-01" @default.
- W2348344228 modified "2023-09-24" @default.
- W2348344228 title "No-chemical monitoring and fast analysis on total nitrogen in water" @default.
- W2348344228 hasPublicationYear "2009" @default.
- W2348344228 type Work @default.
- W2348344228 sameAs 2348344228 @default.
- W2348344228 citedByCount "0" @default.
- W2348344228 crossrefType "journal-article" @default.
- W2348344228 hasAuthorship W2348344228A5014052918 @default.
- W2348344228 hasAuthorship W2348344228A5031239467 @default.
- W2348344228 hasAuthorship W2348344228A5031628401 @default.
- W2348344228 hasAuthorship W2348344228A5057145107 @default.
- W2348344228 hasConcept C105795698 @default.
- W2348344228 hasConcept C113196181 @default.
- W2348344228 hasConcept C128990827 @default.
- W2348344228 hasConcept C165838908 @default.
- W2348344228 hasConcept C185592680 @default.
- W2348344228 hasConcept C192562407 @default.
- W2348344228 hasConcept C22354355 @default.
- W2348344228 hasConcept C2780092901 @default.
- W2348344228 hasConcept C33923547 @default.
- W2348344228 hasConcept C43617362 @default.
- W2348344228 hasConcept C48921125 @default.
- W2348344228 hasConcept C98015330 @default.
- W2348344228 hasConceptScore W2348344228C105795698 @default.
- W2348344228 hasConceptScore W2348344228C113196181 @default.
- W2348344228 hasConceptScore W2348344228C128990827 @default.
- W2348344228 hasConceptScore W2348344228C165838908 @default.
- W2348344228 hasConceptScore W2348344228C185592680 @default.
- W2348344228 hasConceptScore W2348344228C192562407 @default.
- W2348344228 hasConceptScore W2348344228C22354355 @default.
- W2348344228 hasConceptScore W2348344228C2780092901 @default.
- W2348344228 hasConceptScore W2348344228C33923547 @default.
- W2348344228 hasConceptScore W2348344228C43617362 @default.
- W2348344228 hasConceptScore W2348344228C48921125 @default.
- W2348344228 hasConceptScore W2348344228C98015330 @default.
- W2348344228 hasIssue "3" @default.
- W2348344228 hasLocation W23483442281 @default.
- W2348344228 hasOpenAccess W2348344228 @default.
- W2348344228 hasPrimaryLocation W23483442281 @default.
- W2348344228 hasRelatedWork W1923508759 @default.
- W2348344228 hasRelatedWork W2103215259 @default.
- W2348344228 hasRelatedWork W2140195686 @default.
- W2348344228 hasRelatedWork W2144566859 @default.
- W2348344228 hasRelatedWork W2149395141 @default.
- W2348344228 hasRelatedWork W2265562466 @default.
- W2348344228 hasRelatedWork W2351165950 @default.
- W2348344228 hasRelatedWork W2353724963 @default.
- W2348344228 hasRelatedWork W2359420523 @default.
- W2348344228 hasRelatedWork W2387084279 @default.
- W2348344228 hasRelatedWork W2387660899 @default.
- W2348344228 hasRelatedWork W2387889397 @default.
- W2348344228 hasRelatedWork W2393753567 @default.
- W2348344228 hasRelatedWork W2398671817 @default.
- W2348344228 hasRelatedWork W2413691109 @default.
- W2348344228 hasRelatedWork W2947713246 @default.
- W2348344228 hasRelatedWork W2950895645 @default.
- W2348344228 hasRelatedWork W3092383710 @default.
- W2348344228 hasRelatedWork W3121485994 @default.
- W2348344228 hasRelatedWork W3134965099 @default.
- W2348344228 hasVolume "17" @default.
- W2348344228 isParatext "false" @default.
- W2348344228 isRetracted "false" @default.
- W2348344228 magId "2348344228" @default.
- W2348344228 workType "article" @default.