Quantitative Analysis of Monoborates (H3BO3 and $\mathrm {B(OH)^{-}_{4}}$ in Aqueous Solution by Raman Spectroscopy

Jiao-yu PENG; Ke-li YANG; Shao-ju BIAN; Rui-zhi CUI; Ya-ping DONG; Wu LI

doi:10.3964/j.issn.1000-0593(2022)08-2456-07

Journals >Spectroscopy and Spectral Analysis >Volume 42 >Issue 8 >Page 2456 > Article

Spectroscopy and Spectral Analysis
Vol. 42, Issue 8, 2456 (2022)

Quantitative Analysis of Monoborates (H₃BO₃ and $\mathrm {B(OH)^{-}_{4}}$ in Aqueous Solution by Raman Spectroscopy

Jiao-yu PENG^{1; 2; *;}, Ke-li YANG^{1; 2;}, Shao-ju BIAN^{1; 3; 4;}, Rui-zhi CUI^{1; 3;}..., Ya-ping DONG^{1; 2;} and Wu LI^{1; 3;}|Show fewer author(s)

Author Affiliations

1. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China

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DOI: 10.3964/j.issn.1000-0593(2022)08-2456-07 Cite this Article

Jiao-yu PENG, Ke-li YANG, Shao-ju BIAN, Rui-zhi CUI, Ya-ping DONG, Wu LI. Quantitative Analysis of Monoborates (H₃BO₃ and $\mathrm {B(OH)^{-}_{4}}$ in Aqueous Solution by Raman Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(8): 2456 Copy Citation Text

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$The preprocess Raman spectra of B(OH)3 and $\mathrm {B(OH)^{-}_{4}}$ standard series$

Fig. 1. The preprocess Raman spectra of B(OH)₃and $\mathrm {B(OH)^{-}_{4}}$ standard series

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$Correlation curves between the experimental values and predicted values of B(OH)3 and $\mathrm {B(OH)^{-}_{4}}$ using the internal method$

Fig. 2. Correlation curves between the experimental values and predicted values of B(OH)₃ and $\mathrm {B(OH)^{-}_{4}}$ using the internal method

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$Correlation curves between the experimental values and predicted values of B(OH)3and $\mathrm {B(OH)^{-}_{4}}$ using the MLR method$

Fig. 3. Correlation curves between the experimental values and predicted values of B(OH)₃and $\mathrm {B(OH)^{-}_{4}}$ using the MLR method

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$Correlation curves between the experimental values and predicted values of B(OH)3 and $\mathrm {B(OH)^{-}_{4}}$ using the PLSR method$

Fig. 4. Correlation curves between the experimental values and predicted values of B(OH)₃ and $\mathrm {B(OH)^{-}_{4}}$ using the PLSR method

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Fig. 5. The borate Raman spectra of the oilfield brine throughout crystallization process

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样品	实验值	预测值	相对误差^a/%	相关系数 r²
B(OH)₃系列 (mol·L^-1)	0.016	0.019 2	20.00	0.999 7
	0.04	0.039 0	-2.50
	0.08	0.079 7	-0.38
	0.16	0.151 9	-5.06
	0.24	0.236 3	-1.54
	0.32	0.311 2	-2.75
	0.48	0.480 3	0.06
	0.64	0.631 8	-1.28
	0.75	0.752 3	0.31
$\mathrm {B(OH)^{-}_{4}}$系列 (mol·L^-1)	0.035 1	0.036 9	5.13	0.999 3
	0.070 2	0.070 2	0.00
	0.105 4	0.102 6	2.66
	0.140 8	0.139 3	1.07
	0.293 2	0.298 8	1.91
	0.389 8	0.386 6	-0.82
B(OH)₃标准溶液 (g·L^-1)	20.0	21.277 9	6.39	-
$\mathrm {B(OH)^{-}_{4}}$标准溶液 (g·L^-1)	12.750 5	13.071 4	2.52	-

Table 1. Quantitative analysis of B(OH)₃and $\mathrm {B(OH)^{-}_{4}}$ in the solution by the internal method

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样品	实验值	预测值	相对误差^a/%	相关系数 r²
B(OH)₃系列 (mol·L^-1)	0.016	0.116 7	4.19	0.999 9
	0.04	0.042 1	4.99
	0.08	0.080 8	0.99
	0.16	0.160 9	0.56
	0.24	0.238 8	-0.50
	0.32	0.316 1	-1.23
	0.48	0.477 6	-0.50
	0.64	0.639 3	-0.11
	0.75	0.753 8	0.50
$\mathrm {B(OH)^{-}_{4}}$系列 (mol·L^-1)	0.035 1	0.034 9	-0.57	0.999 9
	0.070 2	0.070 5	0.43
	0.105 4	0.105 5	0.09
	0.140 8	0.140 6	-0.14
	0.293 2	0.293 2	0.00
	0.389 8	0.389 8	0.00
B(OH)₃标准溶液 (g·L^-1)	20.0	19.803 9	-0.98	-
$\mathrm {B(OH)^{-}_{4}}$标准溶液 (g·L^-1)	12.750 5	12.779 3	0.23	-

Table 2. Quantitative analysis of B(OH)₃ and $\mathrm {B(OH)^{-}_{4}}$ in the solution by the MLR method

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样品	实验值	预测值	相对误差^a/%	相关系数 r²
B(OH)₃系列 (mol·L^-1)	0.016	0.013 6	15.0	0.998 5
	0.04	0.045 9	14.75
	0.08	0.070 8	1.0
	0.16	0.161 4	0.87
	0.24	0.237 4	-1.08
	0.32	0.312 9	-2.22
	0.48	0.468 1	-2.48
	0.64	0.614 8	-3.94
	0.75	0.758 4	1.12
$\mathrm {B(OH)^{-}_{4}}$系列 (mol·L^-1)	0.035 1	0.036 5	3.99	0.999 2
	0.070 2	0.070 3	0.14
	0.105 4	0.103 5	-1.80
	0.140 8	0.137 1	-2.63
	0.293 2	0.296 8	1.23
	0.389 8	0.382 4	-1.90
B(OH)₃标准溶液 (g·L^-1)	20.0	19.841 8	-0.79
$\mathrm {B(OH)^{-}_{4}}$标准溶液 (g·L^-1)	12.750 5	12.724 6	-0.20

Table 3. Quantitative analysis of B(OH)₃ and $\mathrm {B(OH)^{-}_{4}}$ in the solution by the PLSR method

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回归方法	B(OH)₃标准系列		20.0 g·L^-1B(OH)₃外标预测	$\mathrm {B(OH)^{-}_{4}}$标准系列		12.750 5 g·L^-1$\mathrm {B(OH)^{-}_{4}}$外标预测
回归方法	关联拟合系数	平均相对误差/%	相对误差/%	关联拟合系数	平均相对误差/%	相对误差/%
内标法	0.999 7	3.76	6.39	0.999 3	1.93	2.52
多元线性回归法	0.999 9	1.51	-0.98	0.999 9	0.21	0.23
偏最小二乘回归法	0.998 5	4.72	-0.79	0.999 2	1.95	0.22