  The central object of the quantum algebraic approach to the study of quantum
integrable models is the universal $R$-matrix, which is an element of a
completed tensor product of two copies of quantum algebra. Various
integrability objects are constructed by choosing representations for the
factors of this tensor product. There are two approaches to constructing
explicit expressions for the universal $R$-matrix. One is based on the quantum
double construction, and the other is based on the concept of the
$q$-commutator. In the case of a quantum superalgebra, we cannot use the first
approach, since we do not know an explicit expression for the Lusztig
automorphisms. One can use the second approach, but it requires some
modifications related to the presence of isotropic roots. In this article, we
provide the necessary modification of the method and use it to find an
$R$-operator for quantum integrable systems related to the quantum superalgebra
$\mathrm U_q(\mathcal{L}(\mathfrak{sl}_{M | N}))$.
