Experimental Study on Determination of Trisodium Phosphate Concentration in Water Based on Spectral Technique

Xiao-peng SUN; Rui-jun MA; Yu CHEN; Huan-yi ZHEN; Chuang-li MA

doi:10.3964/j.issn.1000-0593(2020)10-3205-06

Journals >Spectroscopy and Spectral Analysis >Volume 40 >Issue 10 >Page 3205 > Article

Spectroscopy and Spectral Analysis
Vol. 40, Issue 10, 3205 (2020)

Experimental Study on Determination of Trisodium Phosphate Concentration in Water Based on Spectral Technique

Xiao-peng SUN^*, Rui-jun MA, Yu CHEN, Huan-yi ZHEN, and Chuang-li MA

Author Affiliations

College of Engineering, South China Agricultural University, Guangzhou 510642, China

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DOI: 10.3964/j.issn.1000-0593(2020)10-3205-06 Cite this Article

Xiao-peng SUN, Rui-jun MA, Yu CHEN, Huan-yi ZHEN, Chuang-li MA. Experimental Study on Determination of Trisodium Phosphate Concentration in Water Based on Spectral Technique[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3205 Copy Citation Text

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Original absorption spectra of trisodium phosphatein by using three types experimental system(a): Pulse xenon lamp with 100 mm optical path; (b): Deuterium halide lamp with 100 mm optical path;(c): Deuterium halide lamp with 10 mm optical path

Fig. 1. Original absorption spectra of trisodium phosphatein by using three types experimental system
(a): Pulse xenon lamp with 100 mm optical path; (b): Deuterium halide lamp with 100 mm optical path;(c): Deuterium halide lamp with 10 mm optical path

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Absorption spectra of trisodium phosphate after S-G pretreatment bu using three types experimental system(a): Pulse xenon lamp with 100 mm optical path; (b): Deuterium halide lamp with 100 mm optical path; (c): Deuterium halide lamp with 10 mm optical path

Fig. 2. Absorption spectra of trisodium phosphate after S-G pretreatment bu using three types experimental system
(a): Pulse xenon lamp with 100 mm optical path; (b): Deuterium halide lamp with 100 mm optical path; (c): Deuterium halide lamp with 10 mm optical path

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Fig. 3. MEAN-STD distribution of MCCV method
(a): Experiment of pulse xenon lamp with 100 mm optical path; (b): Experiment of deuterium halide lamp with 100 mm optical path; (c): Experiment of deuterium halide lamp with 10 mm optical path

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Fig. 4. The correlation coefficient between absorbance and wavelength of trisodium phosphate for three types experiments
(a): Pulse xenon lamp with 100 mm optical path; (b): Deuterium halide lamp with 100 mm optical path;(c): Deuterium halide lamp with 10 mm optical path

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数据来源	预处理方法	因子数	预测集
数据来源	预处理方法	因子数	$R_{P}^{2}$	RMSEP	RPD
100 mm 光程比色皿脉冲氙灯实验	移动平均平滑	5	0.996 3	0.816 3	17.092 1
	S-G卷积平滑	5	0.996 5	0.796 2	17.523 6
	一阶导数	6	0.995 9	0.865 9	16.113 1
	二阶导数	9	0.950 9	2.994 0	4.660 1
100 mm 光程比色皿氘卤灯实验	移动平均平滑	6	0.997 8	0.561 9	22.136 9
	S-G卷积平滑	6	0.997 9	0.549 0	22.657 1
	一阶导数	5	0.996 4	0.727 6	17.095 6
	二阶导数	6	0.988 0	1.321 5	9.412 6
10 mm 光程比色皿氘卤灯实验	移动平均平滑	5	0.995 6	0.830 9	15.632 9
	S-G卷积平滑	5	0.995 7	0.826 2	15.721 8
	一阶导数	4	0.991 6	1.154 5	11.251 1
	二阶导数	4	0.857 4	4.748 8	2.735 3

Table 1. PLS model results of three types experiments with different pretreatment methods

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序号	数据来源		因子数	样本数	变量数	校正集		预测集
序号	数据来源		因子数	样本数	变量数	$R_{C}^{2}$	RMSEC	$R_{P}^{2}$	RMSEP	RPD
a	100 mm光程比色皿脉冲氙灯实验	剔除前	5	65	320	0.999 3	1.093 8	0.996 5	0.796 2	17.523 6
a	100 mm光程比色皿脉冲氙灯实验	剔除后	5	59	320	0.999 3	0.794 3	0.996 9	0.758 2	18.401 9
b	100 mm光程比色皿氘卤灯实验	剔除前	6	65	320	0.999 4	0.963 9	0.997 9	0.549 0	22.657 1
b	100 mm光程比色皿氘卤灯实验	剔除后	6	57	320	0.999 5	0.800 7	0.998 0	0.544 9	22.827 6
c	10 mm光程比色皿氘卤灯实验	剔除前	5	65	428	0.997 8	1.909 5	0.995 7	0.826 2	15.721 8
c	10 mm光程比色皿氘卤灯实验	剔除后	5	58	428	0.999 3	0.869 6	0.996 5	0.743 5	17.470 6

Table 2. PLS model results of all band data of trisodium phosphate before and after singular sample removed

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序号	数据来源	特征波长 /nm	因子数	校正集		预测集
序号	数据来源	特征波长 /nm	因子数	$R_{C}^{2}$	RMSEC	$R_{P}^{2}$	RMSEP	RPD
a	100 mm光程比色皿脉冲氙灯实验	214.099 8 258.528 9	2	0.992 7	2.658 6	0.970 5	2.321 6	6.009 8
b	100 mm光程比色皿氘卤灯实验	218.837 1 309.760 6	2	0.995 3	2.455 6	0.972 6	1.992 6	6.242 5
c	10 mm光程比色皿氘卤灯实验	204.66 316.17	2	0.982 2	4.264 3	0.962 5	2.436 8	5.330 5

Table 3. Characteristic wavelengths of trisodium phosphate and its PLS model results

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序号	数据来源	变量数	因子数	校正集		预测集
序号	数据来源	变量数	因子数	$R_{C}^{2}$	RMSEC	$R_{P}^{2}$	RMSEP	RPD
a	100 mm光程比色皿脉冲氙灯实验	48	7	0.999 8	0.472 5	0.998 0	0.599 1	23.288 8
b	100 mm光程比色皿氘卤灯实验	48	7	0.999 7	0.670 0	0.996 5	0.708 0	17.568 8
c	10 mm光程比色皿氘卤灯实验	61	6	0.999 4	0.800 3	0.994 1	0.967 3	13.428 5

Table 4. Characteristic band of trisodium phosphate and its PLS model results

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